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1.
Int J Mol Sci ; 24(9)2023 Apr 25.
Article in English | MEDLINE | ID: covidwho-2313827

ABSTRACT

Some viruses are known to be associated with the onset of specific cancers. These microorganisms, oncogenic viruses or oncoviruses, can convert normal cells into cancer cells by modulating the central metabolic pathways or hampering genomic integrity mechanisms, consequently inhibiting the apoptotic machinery and/or enhancing cell proliferation. Seven oncogenic viruses are known to promote tumorigenesis in humans: human papillomavirus (HPV), hepatitis B and C viruses (HBV, HCV), Epstein-Barr virus (EBV), human T-cell leukemia virus 1 (HTLV-1), Kaposi sarcoma-associated herpesvirus (KSHV), and Merkel cell polyomavirus (MCPyV). Recent research indicates that SARS-CoV-2 infection and COVID-19 progression may predispose recovered patients to cancer onset and accelerate cancer development. This hypothesis is based on the growing evidence regarding the ability of SARS-CoV-2 to modulate oncogenic pathways, promoting chronic low-grade inflammation and causing tissue damage. Herein, we summarize the main relationships known to date between virus infection and cancer, providing a summary of the proposed biochemical mechanisms behind the cellular transformation. Mechanistically, DNA viruses (such as HPV, HBV, EBV, and MCPyV) encode their virus oncogenes. In contrast, RNA viruses (like HCV, HTLV-1) may encode oncogenes or trigger host oncogenes through cis-/-trans activation leading to different types of cancer. As for SARS-CoV-2, its role as an oncogenic virus seems to occur through the inhibition of oncosuppressors or controlling the metabolic and autophagy pathways in the infected cells. However, these effects could be significant in particular scenarios like those linked to severe COVID-19 or long COVID. On the other hand, looking at the SARS-CoV-2─cancer relationship from an opposite perspective, oncolytic effects and anti-tumor immune response were triggered by SARS-CoV-2 infection in some cases. In summary, our work aims to recall comprehensive attention from the scientific community to elucidate the effects of SARS-CoV-2 and, more in general, ß-coronavirus infection on cancer susceptibility for cancer prevention or supporting therapeutic approaches.


Subject(s)
COVID-19 , Epstein-Barr Virus Infections , Hepatitis C , Neoplasms , Papillomavirus Infections , Humans , SARS-CoV-2 , Epstein-Barr Virus Infections/complications , Papillomavirus Infections/complications , Post-Acute COVID-19 Syndrome , Herpesvirus 4, Human , COVID-19/complications , Neoplasms/pathology , Oncogenic Viruses/genetics , Cell Transformation, Neoplastic , Hepatitis C/complications
2.
Int J Environ Res Public Health ; 20(5)2023 02 24.
Article in English | MEDLINE | ID: covidwho-2276999

ABSTRACT

The validation and psychometric properties of the Individual and Organization related Stressors in Pandemic Scale for Healthcare Workers (IOSPS-HW) were presented. This is a new measure to assess individual factors related to the health and well-being of individuals, such as family and personal relationships, as well as organizational factors related to the management of the pandemic, including workplace relationships, job management and communication. Across two studies conducted at different time points of the pandemic, psychometric evidence of the IOSPS-HW is presented. In Study 1, through a cross-sectional design, we conducted exploratory and confirmatory factor analysis through which the originally developed 43 items scale was reduced to a 20-item bidimensional scale with two correlated dimensions: Organization-related Stressors (O-S; 12 items) and Individual- and Health-related Stressors (IH-S; 8 items). Internal consistency and criterion validity were also provided by investigating the relationship with post-traumatic stress. In Study 2, we provided evidence for the temporal invariance of the measure and for temporal stability through a Multigroup-CFA through a longitudinal design. We also supported the criterion and predictive validity. The results suggest that IOSPS-HW is a good instrument to simultaneously investigating individual and organizational factors related to sanitary emergencies in healthcare workers.


Subject(s)
Health Personnel , Pandemics , Humans , Psychometrics , Cross-Sectional Studies , Workplace , Reproducibility of Results , Surveys and Questionnaires
3.
Psychiatr Pol ; 56(5): 957-967, 2022 Oct 31.
Article in English, Polish | MEDLINE | ID: covidwho-2217615

ABSTRACT

OBJECTIVES: The aim of this study was to answer the following question: how do threat to life and state anxiety predict psychological functioning in a coronavirus pandemic among Polish adults aged 18-65 years? METHODS: The web-based cross-sectional survey was applied to 1466 Polish respondents (1074 women, 73.3%) aged 18-65 years. They were divided into four age groups (18-25; 26-35; 36-45; 46-65). All participants completed: General Functioning Questionnaire (GFQ), State Anxiety Inventory (STAI-S), and General Sense of Threat to Life Scale (GSTLS). RESULTS: The youngest adults (aged 18-25 years) manifested significantly higher psychological distress, state anxiety, and a sense of threat to life compared to all the older participants. A sense of threat to life and state anxiety were significant predictors of psychological distress during the COVID-19 epidemic, where state anxiety mediates the relation between threat to life and psychological distress. CONCLUSIONS: The youngest participants constitute a risk group for psychological difficulties during the pandemic situation. The COVID-19 psychological distress could be significantly predicted by the two kinds of emotional state such as threat to life and anxiety.


Subject(s)
COVID-19 , Adult , Humans , Female , Adolescent , Young Adult , COVID-19/epidemiology , Pandemics , Cross-Sectional Studies , Poland , Stress, Psychological/psychology , Anxiety/epidemiology , Anxiety/psychology , Depression/epidemiology
4.
Frontiers in psychology ; 13, 2022.
Article in English | EuropePMC | ID: covidwho-2058333

ABSTRACT

Loot Boxes (LBs), i.e., virtual items embedded within video games with numerous features reminiscent of gambling, are increasingly widespread among adolescents. LB use is associated with problem gambling in youth, but few studies have been conducted on the association between LB use and gambling behavior considering adolescents. Thus, the mechanisms underlying this relationship are not clear. As LB use is a significant and positive risk factor for video gaming severity, and video gaming is associated with problem gambling, we hypothesized that LB use would be related to gambling frequency and problem gambling through the intermediary role of video gaming frequency and problem video gaming. We tested our hypothesis before COVID-19-pandemic-related lockdown and during COVID-19-pandemic-related lockdown, in Italy. Study 1 was conducted with 1,078 high school students (39% boys, mean age = 16.46, SD = 1.28) before COVID-19-pandemic-related lockdown, and Study 2 was conducted with 1,204 high school students (57% boys, mean age = 15.62, SD = 0.64) during COVID-19-pandemic-related lockdown. A path analysis was carried out to analyze the significance of indirect effects from LB use to gambling behavior and problem gambling through video gaming and problem video gaming. In both the studies, results showed that LB use exerted significant and positive direct effects on video gaming frequency, problem video gaming, and gambling frequency. Moreover, LB use had indirect significant and positive effects on problem gambling through video gaming frequency, problem video gaming, and gambling frequency. Findings attest that LB use can be related to problem gambling through a greater involvement in videogames. Thus, a specific subtype of young gamblers can develop Gambling Disorder symptoms from the use of LBs and through an intense use of video games. Practical implications for prevention and treatment are discussed.

5.
Geosciences ; 12(9):327, 2022.
Article in English | MDPI | ID: covidwho-2005977

ABSTRACT

Geoscience courses, such as geology and geomorphology, require not only classroom lessons and laboratory exercises, but field trips as well. However, the COVID-19 restrictions did not allow the execution of most planned field trips, and an alternative needed to be developed. The use of virtual field trips is one such alternative. Through this research, we evaluate the usefulness of virtual field trips as tools for preparatory activities before an actual field trip takes place in the same area, and their contribution in providing a better understanding of geomorphological processes and landscape evolution. We performed a virtual navigation on the island of Naxos, Cyclades (Aegean Sea, Greece) for a series of virtual field trips, which took place during webinars in the framework of Erasmus+ CIVIS. The virtual field trip was also presented to the third-year students of the Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens, in the framework of the obligatory course of Geomorphology. Upon completion, all participating students were asked to fill in a questionnaire in order to evaluate the contribution of virtual field trips to their education regarding geomorphology and state their opinion as to whether they can supplement and/or substitute actual field trips. According to the results, virtual field trips can aid, but not substitute, the actual field trip. Most students mentioned that they would attend another virtual field trip in the future, both as an alternative to classroom lessons and as a means of preparation for an actual field trip, but not in order replace the actual one. Virtual field trips can significantly support the realization of actual ones, by introducing the necessary tectonic, geological and geomorphological background of a particular study area and offering more time for practical activities or field methodologies during the actual field trip.

6.
Frontiers in psychology ; 13, 2022.
Article in English | EuropePMC | ID: covidwho-1837257

ABSTRACT

Although some studies have been conducted on gambling behaviour in the general population or in clinical samples during the COVID-19 pandemic, less attention has been focused on Affected Family Members (AFMs) of disordered gamblers. To fill this gap, this study investigated the psychological state of disordered gamblers' AFMs during the COVID-19 lockdown in Italy, the European country first affected by the virus and with the largest gambling market. We were interested in understanding if the unavailability of most land-based gambling offerings during the lockdown created a sense of relief in AFMs. We also compared the quality of family relationships and emotional state during the lockdown of AFMs with those of their relative with Gambling Disorder (GD). Participants were 53 disordered gamblers' AFMs (77% female;mean age = 50.28). For 42 out of the 53 AFMs, we also recruited their relative with GD (86% male;mean age = 48.98). A semi-structured telephone interview was developed. Although AFMs reported a general interruption of the relative's gambling behaviour and a general sense of relief for the closure of gambling activities, accompanied by the perception of good family relationships, AFMs still felt tired, worried, and apprehensive and perceived more fear, stress, and anxiety than before the lockdown. A large proportion of AFMs engaged in potentially addictive behaviours, especially TV and mobile phone and Internet use, which increased in frequency compared to before the pandemic. They still perceived some gambling-related problematic behaviours from their relative and put in place coping strategies to manage the gambling problem. Even if they had a general positive orientation towards the future, they experienced fear when thinking about the reopening of gambling opportunities at the end of the lockdown. Compared to their relatives with GD, AFMs appeared more prone to perceiving a general negative state and a worsening of it from before the lockdown. Overall, this study shows that disordered gambling's AFMs can be considered as a particularly at-risk group who deserves focused clinical attention even during gambling closures related to pandemic lockdown.

7.
Curr Med Chem ; 29(1): 4-18, 2022.
Article in English | MEDLINE | ID: covidwho-1631352

ABSTRACT

The aim of this review article is to summarize the knowledge available to date on prophylaxis achievements in the frame of the fight against Coronaviruses. This work will give an overview of what is reported in the recent literature on vaccines (under investigation or already developed like BNT162b2, mRNA-1273, and ChAdOx1-S) effective against the most pathogenic Coronaviruses (SARS-CoV-1, MERS-CoV-1, and SARS-CoV-2), with of course particular attention paid to those under development or already in use to combat the current COVID-19 (CoronaVIrus Disease 19) pandemic. Our main objective is to make a contribution to the comprehension, even at a molecular level, of what is currently ready for anti-SARS-CoV-2 prophylactic intervention, as well as to provide the reader with an overall picture of the most innovative approaches for the development of vaccines that could be of general utility in the fight against the most pathogenic Coronaviruses.


Subject(s)
COVID-19 , Middle East Respiratory Syndrome Coronavirus , 2019-nCoV Vaccine mRNA-1273 , BNT162 Vaccine , COVID-19 Vaccines , Humans , Middle East Respiratory Syndrome Coronavirus/genetics , SARS-CoV-2
9.
Biomolecules ; 11(11)2021 10 27.
Article in English | MEDLINE | ID: covidwho-1487417

ABSTRACT

The analysis of viral nucleic acids (NA), DNA or RNA, is a crucial issue in the diagnosis of infections and the treatment and prevention of related human diseases. Conventional nucleic acid tests (NATs) require multistep approaches starting from the purification of the pathogen genetic material in biological samples to the end of its detection, basically performed by the consolidated polymerase chain reaction (PCR), by the use of specialized instruments and dedicated laboratories. However, since the current NATs are too constraining and time and cost consuming, the research is evolving towards more integrated, decentralized, user-friendly, and low-cost methods. These will allow the implementation of massive diagnoses addressing the growing demand of fast and accurate viral analysis facing such global alerts as the pandemic of coronavirus disease of the recent period. Silicon-based technology and microfluidics, in this sense, brought an important step up, leading to the introduction of the genetic point-of-care (PoC) systems. This review goes through the evolution of the analytical methods for the viral NA diagnosis of infection diseases, highlighting both advantages and drawbacks of the innovative emerging technologies versus the conventional approaches.


Subject(s)
Biosensing Techniques/methods , COVID-19 Testing , COVID-19/diagnosis , COVID-19/virology , Lab-On-A-Chip Devices , Point-of-Care Systems , Animals , DNA, Viral , Genome, Viral , Humans , Oxidation-Reduction , Pandemics , Polymerase Chain Reaction , RNA, Viral , SARS-CoV-2 , Virus Diseases
10.
Future Oncol ; 17(32): 4389-4395, 2021 Nov.
Article in English | MEDLINE | ID: covidwho-1372054

ABSTRACT

The coronavirus disease 2019 (COVID-19) pandemic has changed many aspects of our everyday lives and medical practice, including oncology treatment; thyroid cancer surgery is not an exception. The reported number of fine-needle aspirations performed during the first semester of 2020 was significantly reduced. Poorly differentiated, medullary and anaplastic thyroid tumors are considered important indications for immediate surgical intervention. By contrast, most well-differentiated carcinomas present slow growth, and thus surgery can be deferred for a short period of time during which patients are under active surveillance. Thyroid surgeries have decreased during the COVID-19 pandemic. Furthermore, prior to any intervention, negative COVID-19 status - with the use of a nasopharyngeal swab and reverse transcription PCR assay as the gold standard and chest CT scan as a complementary modality in some cases - must be confirmed to achieve a COVID-free pathway. Thorough preoperative assessment regarding both oncological and anatomical aspects should be performed to identify optimal timing for safe management.


Subject(s)
Primary Prevention/methods , Thyroid Neoplasms/surgery , Thyroidectomy/statistics & numerical data , Time-to-Treatment , Triage/methods , Biopsy, Fine-Needle , COVID-19/diagnosis , COVID-19/prevention & control , COVID-19 Testing/methods , Humans , SARS-CoV-2/genetics , Thyroid Gland/pathology , Thyroid Neoplasms/pathology
11.
Int J Environ Res Public Health ; 18(12)2021 06 21.
Article in English | MEDLINE | ID: covidwho-1282488

ABSTRACT

It is mainly children and adolescents who are involved in video gaming. The lockdown caused by the COVID-19 pandemic may have further increased their use of video games and, consequently, the risk of gaming disorder (GD) symptoms. However, currently, we do not have exhaustive knowledge of this issue. To fill this gap, the current study aims to analyze video gaming habits in children and adolescents during the lockdown, starting in March 2020 in Italy, the first European country affected by the pandemic. Specifically, we aim to understand how variables related to parents-for instance, knowledge of their offspring's life, the monitoring of their video gaming habits, and parental use of video games-are related to their offspring's time spent on video games and GD symptoms. A web-based survey involving parents (n = 554, 79% mothers, mean age = 45.39) of 554 children and adolescents (73% males, mean age = 11.11) was utilized. The results showed that they were involved in video games, particularly boys and adolescents, with high rates of GD symptoms. The parents also spent a considerable amount of time playing video games. A path model that explained the mechanisms through which parental variables were related to their offspring's time spent on video games and GD symptoms, controlling for gender and age, was verified. Overall, the findings indicate the importance of educating parents to behave effectively with respect to video games and monitor their offspring's video gaming habits.


Subject(s)
Behavior, Addictive , COVID-19 , Video Games , Adolescent , Behavior, Addictive/epidemiology , Child , Communicable Disease Control , Europe , Female , Humans , Italy , Male , Middle Aged , Pandemics , SARS-CoV-2
12.
J Allergy Clin Immunol ; 149(1): 168-175.e4, 2022 01.
Article in English | MEDLINE | ID: covidwho-1246005

ABSTRACT

BACKGROUND: Polyethylene glycols (PEGs) are polymers of varying molecular weight (MW) used widely as excipients in drugs and other products, including the mRNA vaccines against coronavirus disease 2019. Allergy to PEGs is rare. Skin testing and graded challenge carries a high risk of inducing systemic reactions. OBJECTIVE: We evaluated skin prick test (SPT) results and in vitro reactivity over time to different MW PEGs and assessed cross-sensitization patterns in PEG allergy. METHODS: Ten patients with previously diagnosed PEG allergy underwent SPT twice with PEGs 26 months apart. Lower MW (PEG 300, 3000, 6000) were tested, followed by PEG 20,000, in stepwise, increasing concentrations. Cross-sensitization to polysorbate 80 and poloxamer 407 was assessed. SPT was performed in 16 healthy controls. In vitro basophil histamine release (HR) test and passive sensitization HR test were performed in patients and controls. RESULTS: Patients previously testing positive on SPT to PEG 3000 and/or 6000 also tested positive to PEG 20,000. Patients with a longer interval since diagnosis tested negative to lower MW PEGs and positive mainly to higher concentrations of PEG 20,000. Three patients developed systemic urticaria during SPT. Eight patients showed cross-sensitization to poloxamer 407 and 3 to polysorbate 80. All controls tested negative. In vitro tests showed limited usefulness. CONCLUSIONS: Skin test reactivity to PEG can decrease over time, but titrated SPT with increasing concentrations of PEG 20,000 can be diagnostic when lower MW PEGs test negative. To avoid systemic reactions, stepwise SPT is mandatory.


Subject(s)
2019-nCoV Vaccine mRNA-1273/adverse effects , COVID-19/prevention & control , Drug Hypersensitivity , Polyethylene Glycols/adverse effects , SARS-CoV-2/immunology , 2019-nCoV Vaccine mRNA-1273/administration & dosage , Adolescent , Adult , COVID-19/immunology , Drug Hypersensitivity/diagnosis , Drug Hypersensitivity/immunology , Female , Humans , Male , Middle Aged , Polyethylene Glycols/administration & dosage
13.
J Clin Med ; 10(6)2021 Mar 20.
Article in English | MEDLINE | ID: covidwho-1143527

ABSTRACT

BACKGROUND AND AIM: Lung ultrasound (LUS) is a convenient imaging modality in the setting of coronavirus disease-19 (COVID-19) because it is easily available, can be performed bedside and repeated over time. We herein examined LUS patterns in relation to disease severity and disease stage among patients with COVID-19 pneumonia. METHODS: We performed a retrospective case series analysis of patients with confirmed SARS-CoV-2 infection who were admitted to the hospital because of pneumonia. We recorded history, clinical parameters and medications. LUS was performed and scored in a standardized fashion by experienced operators, with evaluation of up to 12 lung fields, reporting especially on B-lines and consolidations. RESULTS: We included 96 patients, 58.3% men, with a mean age of 65.9 years. Patients with a high-risk quick COVID-19 severity index (qCSI) were older and had worse outcomes, especially for the need for high-flow oxygen. B-lines and consolidations were located mainly in the lower posterior lung fields. LUS patterns for B-lines and consolidations were significantly worse in all lung fields among patients with high versus low qCSI. B-lines and consolidations were worse in the intermediate disease stage, from day 7 to 13 after onset of symptoms. While consolidations correlated more with inflammatory biomarkers, B-lines correlated more with end-organ damage, including extrapulmonary involvement. CONCLUSIONS: LUS patterns provide a comprehensive evaluation of patients with COVID-19 pneumonia that correlated with severity and dynamically reflect disease stage. LUS patterns may reflect different pathophysiological processes related to inflammation or tissue damage; consolidations may represent a more specific sign of localized disease, whereas B-lines seem to be also dependent upon generalized illness due to SARS-CoV-2 infection.

14.
Int J Environ Res Public Health ; 18(2)2021 01 07.
Article in English | MEDLINE | ID: covidwho-1016171

ABSTRACT

The COVID-19 pandemic, with the consequent lockdown of about 3 months, can be viewed as an experimental model to observe the impact of the depletion of environmental factors that stimulate gambling, particularly electronic gambling machines (EGMs) that were set to zero. The effects of some structural characteristics of gambling activities that increase gambling behavior were studied among disordered gamblers in treatment in this unique scenario. In fact, studies investigating the effects of the lockdown on problem gamblers (PGs) under treatment are missing. The aims of this study were to analyze patients' gambling behavior and craving during the lockdown and to conduct a comparison between gambling disorder (GD) symptoms at the beginning of the treatment and during lockdown. The study was conducted in Italy, the European country with the largest gambling market and the first to be affected by the virus. Data were collected through a semi-structured telephone interview conducted by healthcare professionals. Participants were 135 PGs under treatment (109 males, mean age = 50.07). Results showed that most PGs achieved a significant improvement in their quality of life, with less gambling behavior, GD symptoms, and lower craving. No shift toward online gambling and very limited shift towards other potential addictive and excessive behaviors occurred. The longer the treatment, the more monitoring is present and the better the results in terms of symptoms reduction. Individual and environmental characteristics during the lockdown favored the reduction in symptoms. Consideration for prevention and treatment are discussed.


Subject(s)
Behavior, Addictive/epidemiology , COVID-19/epidemiology , Gambling/epidemiology , Communicable Disease Control , Female , Humans , Italy/epidemiology , Male , Middle Aged , Pandemics , Quality of Life , Surveys and Questionnaires
15.
GMS Hyg Infect Control ; 15: Doc28, 2020.
Article in English | MEDLINE | ID: covidwho-937401

ABSTRACT

Background: New commercially available point-of-care (POC) immunodiagnostic tests are appearing, which may yield rapid results for anti-SARS-CoV-2 antibodies. The aim of this study was to evaluate the diagnostic accuracy of rapid antibody detection tests compared to a validated laboratory-based enzyme-linked immunosorbent assay (ELISA) and to investigate infections amongst healthcare workers (HCWs) after unprotected close contact to COVID-19 patients. Methods: Blood serum and whole blood of 130 participants were tested with NADAL® COVID-19 IgG/IgM rapid test and mö-screen 2019-NCOV coronavirus test against a validated ELISA test. Infection status was evaluated using real-time polymerase-chain-reaction. Results: Acute COVID-19 infection was detected in 2.4% of exposed HCWs. Antibody tests showed an overall frequency of IgG and IgM in 5.3%, with 1.6% asymptomatic infections. The NADAL® test showed a sensitivity (IgM/IgG) of 100% (100%/100%), a specificity (IgM/IgG) of 98.8% (97.6%/100 %), a PPV of 76.9% (57.1%/100%), an NPV of 100% (100%/100%), and a diagnostic accuracy of 98.8% (97.7%/100%). The mö-screen test had a sensitivity (IgM/IgG) of 90.9% (80%/100%), a specificity (IgM/IgG) of 98.8% (97.6%/100%), a PPV of 76.9% (57.1%/100%), an NPV of 99.6% (99.2%/100%), and a diagnostic accuracy of 98.5% (96.9%/100%). Conclusions: The frequency of COVID-19 infections in HCWs after unprotected close contact is higher than in the general population of a low-prevalence country. Both POC tests were useful for detecting IgG, but did not perform well for IgM, mainly due to false positive results.

16.
Curr Med Chem ; 27(27): 4536-4541, 2020.
Article in English | MEDLINE | ID: covidwho-704887

ABSTRACT

Here we report on the most recent updates on experimental drugs successfully employed in the treatment of the disease caused by SARS-CoV-2 coronavirus, also referred to as COVID-19 (COronaVIrus Disease-19). In particular, several cases of recovered patients have been reported after being treated with lopinavir/ritonavir [which is widely used to treat Human Immunodeficiency Virus (HIV) infection] in combination with the anti-flu drug oseltamivir. In addition, remdesivir, which has been previously administered to Ebola virus patients, has also proven effective in the U.S. against coronavirus, while antimalarial chloroquine and hydroxychloroquine, favipiravir and co-administered darunavir and umifenovir (in patient therapies) were also recently recorded as having anti-SARS-CoV-2 effects. Since the recoveries/deaths ratio in the last weeks significantly increased, especially in China, it is clear that the experimental antiviral therapy, together with the availability of intensive care unit beds in hospitals and rigorous government control measures, all play an important role in dealing with this virus. This also stresses the urgent need for the scientific community to devote its efforts to the development of other more specific antiviral strategies.


Subject(s)
Antiviral Agents/therapeutic use , Coronavirus Infections/drug therapy , Pneumonia, Viral/drug therapy , Adenosine Monophosphate/analogs & derivatives , Alanine/analogs & derivatives , Amides , Betacoronavirus , COVID-19 , China , Darunavir , Drug Combinations , Humans , Hydroxychloroquine , Indoles , Lopinavir , Pandemics , Pyrazines , Ritonavir , SARS-CoV-2 , COVID-19 Drug Treatment
17.
researchsquare; 2020.
Preprint in English | PREPRINT-RESEARCHSQUARE | ID: ppzbmed-10.21203.rs.3.rs-50887.v1

ABSTRACT

Background: New commercially available point-of-care (POC) immunodiagnostic tests are appearing, which may yield rapid results for anti-SARS-CoV-2 antibodies. The aim of this study was to evaluate the diagnostic accuracy of rapid antibody detection tests compared to a validated laboratory-based enzyme-linked immunosorbent assay (ELISA) and to investigate infections amongst healthcare workers (HCWs) after unprotected close contact to COVID-19 patients. Methods: Blood serum and whole blood of 130 participants were tested with NADAL® COVID-19 IgG/IgM Rapid Test and mö-screen 2019-NCOV Corona Virus Test against a validated ELISA test. Infection status was evaluated using real-time polymerase-chain-reaction.Results: Acute COVID-19 infection was detected in 2.4% of exposed HCWs. Antibody tests showed an overall frequency of IgG and IgM in 5.3%, with 1.6% asymptomatic infections. The NADAL® test showed a sensitivity (IgM/ IgG) of 100% (100%/ 100%), a specificity (IgM/ IgG) of 98.8% (97.6%/ 100 %), a PPV of 76.9% (57.1%/ 100%), an NPV of 100% (100%/ 100%), and a diagnostic accuracy of 98.8% (97.7%/ 100%). The mö-screen test had a sensitivity (IgM/IgG) of 90.9% (80%/ 100%), a specificity (IgM/IgG) of 98.8% (97.6%/ 100%), a PPV of 76.9% (57.1%/ 100%), an NPV of 99.6% (99.2%/ 100%), and a diagnostic accuracy of 98.5% (96.9%/ 100%). Conclusions: The frequency of COVID-19 infections in HCWs after unprotected close contact is higher than in the general population of a low-prevalence country. Both POC tests were useful for detecting IgG, but did not perform well for IgM, mainly due to false positive results.


Subject(s)
COVID-19
18.
Euro Surveill ; 25(11)2020 03.
Article in English | MEDLINE | ID: covidwho-10076

ABSTRACT

Data concerning the transmission of the novel severe acute respiratory syndrome coronavirus (SARS-CoV-2) in paucisymptomatic patients are lacking. We report an Italian paucisymptomatic case of coronavirus disease 2019 with multiple biological samples positive for SARS-CoV-2. This case was detected using the World Health Organization protocol on cases and contact investigation. Current discharge criteria and the impact of extra-pulmonary SARS-CoV-2 samples are discussed.


Subject(s)
Asymptomatic Infections , Coronavirus Infections/diagnosis , Coronavirus/isolation & purification , Feces/virology , Lung/diagnostic imaging , Nasopharynx/virology , Pneumonia, Viral/diagnosis , Travel , Virus Shedding , Antibodies, Viral/immunology , Betacoronavirus , COVID-19 , COVID-19 Testing , China , Clinical Laboratory Techniques , Contact Tracing , Coronavirus/genetics , Coronavirus Infections/transmission , Coronavirus Infections/virology , Humans , Italy , Lung/pathology , Male , Pandemics , Pneumonia, Viral/therapy , Pneumonia, Viral/transmission , Pneumonia, Viral/virology , Quarantine , Radiography, Thoracic , Real-Time Polymerase Chain Reaction , SARS-CoV-2 , Tomography, X-Ray Computed , World Health Organization , Young Adult
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