Predictors of severity in COVID-19

Background: In the context of home monitoring of severe acute respiratory syndrome coronavirus-2 disease (COVID-19) patients, it is imperative to evaluate the accuracy of finger pulse oximetry oxygen saturation (SpO2) in the assessment of hypoxia. Methods: Retrospective data analysis was performed on (n = 132) hospitalised COVID-19 patients with various levels of severity, in whom SpO2, haematological, biochemical and arterial blood gas (ABG) parameters were measured within 48 h after admission. Discrepancy between SpO2 and arterial blood oxygen saturation SaO2 was compared between mild, moderate and severe COVID-19 to assess the accuracy of finger pulse oximetry. Results: We found that total white blood cell count, neutrophil %, neutrophil-lymphocyte ratio, platelet-lymphocyte ratio, ferritin, C-reactive protein and lactate dehydrogenase (LDH) were significantly increased in severe COVID-19, while lymphocyte % was significantly less when compared to mild and moderate cases. Multivariable analysis suggested that red cell distribution width (RDW) and LDH together account for significant variance in the severity of disease. The SpO2 and SaO2 were significantly less in the severe group. The difference between SpO2 and SaO2 has a clinically meaningful albeit statistically nonsignificant trend with the discrepancy greater in severe COVID-19 cases when compared to mild and moderate cases. Conclusions: Finger pulse oximetry has the potential to underestimate the severity of hypoxia in severe COVID-19 and this has implications in the decision to start oxygen therapy. RDW and LDH constitute the best parsimonious set of variables to predict severity.

Assessment of methemoglobin, hemoglobin, ferritin and lactate dehydrogenase in COVID-19 patients

Today world is trying to cope with the biggest pandemic caused by Coronavirus disease 2019 (COVID-19). The disease is graded as mild, moderate, serious and critical illness. Very few studies are done with methemoglobin along with other parameters for the assessment of the severity of COVID-19 disease. The objectives of the study were to estimate methemoglobin (Met-Hb), hemoglobin (Hb), ferritin and lactate dehydrogenase (LDH) levels in patients with COVID-19 disease and to investigate the interaction between these parameters and the severity of the disease. This observational study was conducted in three groups of COVID-19 patients- moderate, severe and critical, each group containing 30 patients, between June 2021 and September 2021 in the biochemistry department of a tertiary care hospital. For all patients, Met-Hb, Hb, ferritin, and LDH levels were estimated on the 2nd-3rd day of hospital admission. Patients in the critical group were older and had significantly high values of Met-Hb, ferritin and LDH and significantly low values of Hb (P<0.05). In multivariate ordinal regression analysis, older age (OR-3.08;95%CI:1.19-7.19;P-0.019), higher values of LDH (OR-8.66;95%CI:2.53-29.5;P-0.001) and ferritin (OR-3.08;95%CI:1.09-8.7;P-0.033) were independently associated with severity of the disease. A cut-off value of 410.50 U/L for LDH predicted the severity of the disease with 90% sensitivity and 88.3% specificity. In conclusion, higher levels of LDH and ferritin were related to the severity of the disease in COVID-19 cases. Although Met-Hb showed a minimal increase without any association with severity, it may be an underlying cause of hypoxia that may go unnoticed. So, monitoring of all these parameters should be done at intervals.

Serum NT-proBNP levels in predicting severity of COVID19 infection

Background: Patients with COVID commonly have mild symptoms or even be asymptomatic, a notable proportion of patients may develop severe pneumonia, acute respiratory distress syndrome, multiorgan failure and, death. NT-proBNP reflects haemodynamic stress and has proven useful for risk stratification in heart failure (HF) and other conditions such as pulmonary embolism and pneumonia. NT-proBNP is an important biomarker for the diagnosis and estimation of prognosis in cardiac insufficiency. Therefore, in the current study, we are aiming to investigate the association between the serum NT pro BNP levels in covid-19 patients and to correlate the same with the severity of COVID-19 infection. Methods: A cohort study involving 68 covid patients whose NT pro BNP levels was estimated at the time of admission and compared with other covid biomarkers. Patients classified as moderate and severe according to ICMR guidelines were included. Serum NTproBNP levels & other covid biomarkers like CRP, IL6, Ddimer, Ferritin, LDH were estimated. Results: Serum NT pro BNP levels were high in severely ill covid patients compared to moderately ill covid 19 patients and was found statistically significant. Serum NT pro BNP levels was positively correlating with other biomarkers. Mortality rate of 4.41% was reported. Conclusion: Serum NT-proBNP levels of COVID 19 patients can be used to predict the prognosis of covid which can help in early diagnosis and management of complications.

Critical evaluation of haematological and biomarker variation in COVID -19 patients - a prospective study in level 2 tertiary care hospital (Lucknow West)

Background: In India, the first case of COVID-19 was reported on January 30, 2020. The case reporting is based on the testing of individuals by Real-time Reverse Transcription- Polymerase Chain Reaction (RT-qPCR). The present study was conducted to evaluatedifferent parameters, Haematological and Biomarker variations in patients with SARS-CoV2 Infection to assess the prognostic significance. Material & Methods: The present prospective study was conducted among 70 patients who were diagnosed with COVID-19 infection. Relavant physical examination and clinical data of the patient and routine blood investigations including, CBC, serum biochemistry, coagulation function and measurement of inflammatory markers were performed. The results were analyzed by using a SPSS Statistics software version 25.0. Results: In the present study total patients were 70 out of which 58.6% were males and 41.4% were females. Maximum subjects belong to age group 61-80 yrs (47.1%). Mean haemoglobin was 12.89g/l, mean platelet was 9.96x103/l. Mean neutrophil were 88.21%, mean lymphocyte were 8.84%, mean eosinophil were 1.47%, mean monocyte was 1.59%, mean TLC was 12007.14/l. Mean random blood sugar was 148.09 mg/dl. Mean D-dimer was 0.56. Mean CRP levels were 65.5 mg/l. Mean LDH was 516.03 IU/L, mean IL-6 was 282.6pg/ml, and mean procalcitonin was 0.8 ng/ml. Mean SGOT was 62.36u/l, mean ALP was 171.87IU/L, mean urea levels were 57.10 mg/dl and mean INR was 1.22. Outcome mortality was present in total 14 subjects (5 were male and 9 were female) out of all 70 subjects. Conclusion: The present study concluded that Mean values of neutrophil, eosinophil, TLC, random blood sugar, IL6, SGOT, ALP, urea levels and INR were increased in patients with SARS-CoV2 Infection.

Clinical, laboratory and radiological parameters of COVID 19 pneumonia: a single-centered retrospective observational study in Pune, India

Background: The severe acute respiratory syndrome coronavirus called the novel coronavirus caused the pandemic coronavirus disease 19 (COVID-19). All over the world, SARS-CoV-2 pneumonia is causing significant short-term morbidity and mortality, but the medium-term impact on lung function and quality of life of affected patients is still unknown. Aims: To assess clinical, laboratory, and radiological parameters of COVID-19 Patients and to correlate radiological findings and disease severity among patients. Methodology: In this retrospective observational study a total of 630 patients with radiologically confirmed pneumonia and COVID-19 RT PCR positive were included from a tertiary care centre in Pune, Maharashtra, following their voluntary informed consent. Patients underwent clinical, laboratory, and radiological investigations. Results: It was observed that the majority 174 (27.6%) were in the age group of 31 to 40 years and male predominance was observed compared to female. The majority of the patients 314 (49.8%) had mild, 232 (36.8%) were moderate and 84 (13.3%) had severe illness as per CT scores (HRCT Chest score). Mean BSL levels were 181 +or- 81.44, mean pulse rate was 94.03 +or- 14.93 bpm, mean respiratory rate was 22.84 +or- 3.71cpm, systolic blood pressure was 129.09 +or- 13.18 mmHg, diastolic blood pressure was 82.80 +or- 9.67 mmHg and mean temperature was 98.56 +or- 1.67 degrees F. The mean ferritin levels were 181 +or- 81.44, the mean LDH level was 94.03 +or- 14.93, mean HbA1C was 7.45 +or- 1.68. The mean NLR was 5.51 +or- 2.41, the mean WBC count was 7238.38 +or- 4942.23 and the mean hematocrit was 39.69 +or- 4.80. The mean D dimer level was 402.29 +or- 424.70, median levels were 260 (170-450). 503 (79.8%) had CRP levels more than 5 and 127 (20.2%) had levels less than 5. The mean duration of hospital stay was 9.18 days +or- 4.34 days. Majority 570 (90.5%) had fever, 493 (78.3%) had cough, 286 (45.4%) had breathlessness, 66 (10.5%) had sore throat. Other symptoms include vomiting, and loose motion in 17 (2.7%). Among 630 subjects included in the present study, the majority 584 (92.7%) have recovered/were discharged from the hospital and 46 (7.3%) succumbed to the illness. The mean SGOT and SGPT levels were 44.86+or- 31.29 and 43.60 +or- 31.25 respectively. Mean serum creatinine and BUN levels were 0.87+or- 0.80 and 13.96 +or- 9.46 respectively. The mean values of pulse rate, systolic blood pressure, diastolic blood pressure, respiratory rate and temperature showed an increasing trend across the grades of severity. Conclusion: We concluded that age, gender, blood sugar level, blood pressure, clinical symptoms, comorbidities, inflammatory biomarkers and CT severity score were independently associated with the severity and mortality based on our findings.

Laboratory and clinical findings in hospitalized pregnant women with COVID-19 based on disease outcome during the outbreak of Delta variant in Ardabil (summer and autumn 2021)

Introduction: Due to the high risk of Covid-19 disease, especially delta variant in pregnant women, as well as the novelty of this epidemic in the world and the lack of similar studies in Iran and the region, it seems necessary to perform a study on mortality rate and laboratory and clinical findings of the disease in pregnant women. Therefore, this study was performed aimed to determine the laboratory and clinical findings in hospitalized pregnant women with Covid -19 based on disease outcome during the outbreak of Delta variant (summer and autumn 2021) in Ardabil province. Methods: In this cross-sectional and descriptive study, all pregnant women with Covid-19 admitted to the hospitals of Ardabil province in summer and autumn 2021 at the time of delta outbreak were included. Finally, 187 infected pregnant mothers were studied. Demographic information, clinical signs and laboratory findings were studied in all mothers. Data were analyzed by SPSS (version 24) and Fisher Exact test and Pearson Correlation. P<0.05 was considered statistically significant. Results: Of the 187 infected pregnant women, 8 mothers died. Comorbidity was observed in 41 pregnant women. The most common clinical finding was shortness of breath (Dyspnea) and cough, and the most common laboratory finding was lymphopenia. Comparing the cured and dead mothers according to laboratory findings using Fisher's exact test showed that the difference between ALT (p <0.05), lactate dehydrogenase (p <0.001), AST (p <0.001), BS (P <0.05), creatinine (p <0.05) and total bilirubin (p <0.05) were statistically significant between the two groups. Conclusion: Infection to delta variant of Covid-19 disease resulted in 187 hospitalizations and 8 deaths of pregnant mothers in Ardabil province. Shortness of breath (Dyspnea) and cough were the most common clinical findings and lymphopenia was the most common laboratory finding.

Observation of changes of early laboratory indicators and COVID-19 vaccine protection in patients infected with SARS-CoV-2 Delta variant

Objective: To observe early laboratory indicators in peripheral blood of patients infected with SARSCoV- 2 Delta variant and the protective effects of COVID-19 vaccine on patients infected with SARS-CoV-2 Delta variant, in order to provide reference for epidemic prevention and control. Methods: Twenty-five Chengdu local confirmed nonsevere COVID-19 patients over 18 years old who were infected with COVID-19 caused by Delta variant in November 2021 were included as the research group, 22 cases of whom were vaccinated with COVID-19 vaccine before infection, and 3(2 cases over 80 years old)were unvaccinated. In addition, 71 non-severe COVID-19 patients at the age of over 18 years diagnosed in Chengdu from January 2020 to February 2020 were included as the control group. Peripheral blood was collected for laboratory examination in all cases on the first or second days after admission, and peripheral blood was collected for laboratory examination again in patients on day 4 to 8 after admission in the research group. Laboratory indicators included the blood routine, C-reactive protein, procalcitonin, liver function, myocardial enzyme profile, coagulation routine, T lymphocyte subsets, SARS-CoV-2 IgG antibody, and total antibody, etc. The first peripheral blood laboratory test results: of the two groups were compared to observe the protective effect of COVID-19 vaccine on patients infected with SARS-CoV- 2 Delta variant. Results Among the first time of laboratory indicators after admission, the lymphocyte count, lactate dehydrogenase, and D-dimer in the research group were all lower than those in the control group(all P < 0.05), and the procalcitonin and aspartate aminotransferase were higher than those in the control group(all P < 0.05). Among the 22 cases who had gotten vaccine before infection in the research group, there were 5 cases with positive result of SARS-CoV-2 IgG antibody in the first time of peripheral blood, 22 cases with positive result of SARS-CoV-2 IgG antibody in the second time of peripheral blood, and none of them became severe cases. During 3 unvaccinated cases, twice of the SARS-CoV-2 IgG antibody were both negative among the 2 cases over 80 years who had not vaccinated in the research group, then they became severe cases on day 6-8 during hospitalization, and the rest one had negative result of SARS-CoV-2 IgG antibody in the second time of peripheral blood. Among the 22 vaccinated cases in the research group, the lymphocyte count, CD4+T cell count, CD8+T cell count, SARS-CoV-2 specific antibodies in the second time peripheral blood were all higher than those in the first time of peripheral blood(all P < 0.05), and platelet count, hemoglobin, total protein, creatine kinase were all lower than those in the first time of peripheral blood(all P < 0.05). Conclusions: Lymphocyte count at early admission in COVID-19 patients infected with Delta variant may be lower than that infected with wild strain. COVID-19 vaccine can reduce the risk of infection of SARS-CoV-2 Delta variant by preventing the emergence of inflammatory storms and producing a large number of specific antibodies.

Comparison of clinical manifestations, liver function, and antibody levels between omicron variant infection patients vaccinated and not vaccinated with COVID-19 vaccine

Objective: To compare the clinical manifestations, liver function, and antibody levels between Omicron variant infection patients vaccinated and not vaccinated with COVID-19 vaccine. Methods: Totally 430 convalescent COVID-19 patients infected with Omicron variant in Tianjin were selected, including 150 patients vaccinated with Corona Vaccine(Sinovac group), 185 patients vaccinated with BBIBP-CorV(Beijing biological group), 41 patients vaccinated with Ad5-nCoV vaccine(CanSino group), 16 patients vaccinated with Anhui Zhifei, Changchun Bio, Lanzhou Bio, Shandong Bio, other adenovirus vector vaccines or mixed vaccination(other group), and 38 unvaccinated patients(unvaccinated group). The clinical manifestations, liver function indexes [alanine aminotransferase(ALT), aspartate aminotransferase(AST), total bilirubin(TB), albumin(ALB), total protein(TP), lactate dehydrogenase(LDH)], and antibody levels(IgG, IgM)were compared retrospectively. Results: There was no statistical difference in the sex composition ratio among groups(P > 0.05). The age of the Beijing biological group was significantly lower than that of other groups, and the proportion of time less than 3 months from the last vaccination to admission in the Beijing biological group and CanSino group was significantly higher than that in the Sinovac group and other groups(all P < 0.01). A total of 110 children aged less than 16 years were enrolled, including 7, 88, 0, 1 and 14 cases in the Sinovac group, Beijing biological group, CanSino group, other group, and unvaccinated group, respectively. There were 6 asymptomatic cases, 13 moderate cases, 91 mild cases and 0 severe case. There was no significant difference in the abnormal rate of ALT between Beijing biological group and unvaccinated group(P > 0.05), but the abnormal rates of ALT were higher in the Sinovac group and CanSino group than in the unvaccinated group and Beijing biological group(all P < 0.05). The abnormal rate of AST in the unvaccinated group was higher than that in other groups(P < 0.05). There were no significant differences in AST, TP or TB among the groups(all P > 0.05). The levels of ALT were higher in the Sinovac group and CanSino group than in Beijing biological Group and unvaccinated group, the level of ALB in the unvaccinated group was lower than that in the other groups, and the level of LDH in the Beijing biological group was higher than those in the Sinovac group and CanSino group(both P < 0.05). The IgG and IgM antibody levels of the unvaccinated group were significantly lower than those of the Sinovac group, Beijing biological group and CanSino group(all P < 0.05). Conclusions: Omicron variant infection patients vaccinated with BBIBP-CorV are younger and have a higher proportion of mild conditions, which can protect the liver function of patients to a certain extent. Patients vaccinated with different COVID-19 vaccines can produce higher levels of IgG and IgM antibodies than the unvaccinated patients.

Impact of acute kidney injury in COVID 19 infected patients

Background: Corona virus disease 2019 (covid-19) is a novel disease caused by a newly identified virus, severe acute respiratory syndrome corona virus 2 (sars-cov-2). The novel disease which begun in Wuhan, China in Dec 2019 was declared pandemic by world health organization on 11 march 2020. The most common reported reasons for intensive care unit admission for patients with severe corona virus disease 2019 (covid-19) are either hypoxemic respiratory failure leading to mechanical ventilation or hypotension requiring vasopressor support. Data on AKI are either lacking in this perspective, we emphasize that AKI can be a severe complication of covid-19 and highlight the importance of assessing, defining, and reporting the course of AKI in patients admitted in intensive care unit. Methods: This is a single centre retrospective observational study. 542 patients with real time-PCR and rapid antigen test confirmed COVID 19 infection admitted in KIMS intensive care unit, Hubballi were taken for study. Patients with chronic kidney disease were excluded from the study. Clinical examination and laboratory investigations including renal function test, liver function test, complete blood count, chest x-ray, d-dimer, ferritin, LDH, CRP was done for all the patients. Duration: 1 year (2020 August -2021 July) Results: Out of 542 patients, 166 patients developed acute kidney injury accounting for 30.62%. 145 patients died (87.47) who had acute kidney injury. And 27 patients were discharged (12.6%) who recovered from acute kidney injury. Results: Among the patients who did not developed AKI(376) .300(79.81) died and 76(20.2) got discharged. The p value was 0.034 which was significant for increase in mortality among patients who developed AKI. The incidence of mortality among COVID patient admitted to KIMS ICU was 82.1%. Conclusion: The mortality was significantly higher in COVID patients developing AKI. So we can predict the outcome in COVID infected patients who develops acute kidney injury. AKI is one of manifestation in COVID patients due to tropism of corona virus to ace receptors present in kidney.

The relationship of laboratory parameters and rates with prognosis and mortality in COVID-19 infection

Objective:In this study, to evaluate the clinical course and prognosis in COVID-19 patients, to evaluate the hematological and biochemical parameters at the time of admission to the hospital.

Correlation between severe COVID-19 and type 2 diabetes mellitus

Objective: To investigate the changes and significance of various indicators in patients with severe coronavirus disease 2019(COVID-19)pneumonia combined with type 2 diabetes mellitus(T2DM), and provide a theoretical basis for early clinical disease prediction, diagnosis and treatment. Method: A retrospective analysis of 80 patients with severe COVID-19 pneumonia in Wuhan Ninth Hospital from January to April 2020, among them, 42 cases were combined with type 2diabetes mellitus(COVID-19 combined with T2DM group), and 38 cases were not combined with type 2 diabetes mellitus(COVID-19 without T2DM group), including age,gender, medical history, laboratory examinations, and disease outcome were analyzed.

Clinical study of antibody cocktail therapy for COVID-19

Background: Randomized phase III clinical trials suggest that the antibody cocktail containing casirivimab and imdevimab reduces the risk of hospitalization/death in high-risk COVID-19 patients. However, the efficacy of the cocktail in daily clinical practice remains unknown.

Cross antigenicity of Salmonella typhi and novel coronavirus antibody in second wave of COVID-19 pandemic

During second wave of COVID-19 pandemic, increase in incidence of typhoid was observed in different cities of Pakistan. Rapid diagnostic tests for COVID-19 and typhoid are less sensitive and confirmatory tests are required to diagnose the infection. Moreover, COVID-19 IgM mimic Salmonella typhi IgM and have same clinical presentations as typhoid. Muzaffargarh is a district of province Punjab. Being a hotspot for COVID-19, it also has high prevalence of Typhoid. Therefore, in this study we aim to evaluate the cross antigenicity of COVID-19 IgM with Salmonella typhi IgM. 593 patients were enrolled in study with informed consent. Blood samples were collected from patients and laboratory biomarkers were analyzed. Data was recorded and statistical analysis was done. Among study participants, 64% were males while 36% were females. All the laboratory biomarkers were elevated in all the patients. Different age groups didn't exhibit difference in all laboratory biomarkers except ferritin. Significant difference was observed in creatinine, LDH and ferritin levels in male and female patients. It can be concluded that all age groups are under same risk. However, disease severity is higher in male population.

Clinical characteristics of 290 foreign-imported cases infected with SARS-CoV-2 in Chengdu, China

Objective: To analyze the epidemiological and clinical characteristics of foreign-imported patients infected with SARS-CoV-2 in Chengdu City.

Changes of serum LXA4, Card9 and PTX-3 in patients with severe acute pancreatitis and their predictive value for complicated MODS

Objective: To investigate the changes of serum lipoxin A4 (LXA4), caspase recruitment domain containing protein 9 (Card9), and pentraxin 3 (PTX-3) in patients with severe acute pancreatitis (SAP) and their predictive value of multiple organ dysfunction syndrome (MODS).

A differential diagnosis model for patients with COVID-19 and non-COVID-19 pneumonia based on laboratory indicators

OBJECTIVE: To retrospectively analyze the clinical characteristics, imaging features and laboratory indexes of the patients with COVID-19 and non-COVID-19 so as to seek for differential diagnosis indexes. METHODS: A total of 66 patients with COVID-19 and 40 non-COVID-19 patients were recruited as study subjects who were treated in the hospital from Jan 2020 to Apr 2020. The demographic data, clinical symptoms, underlying diseases, imaging features, length of hospital stay and laboratory test indexes at the admission were statistically analyzed. RESULTS: The white blood cell(WBC),albumin(ALB) and prealbumin(PALB) of the COVID-19 patients were remarkably lower than those of the non-COVID-19 patients;while the length of hospital stay, aspartate aminotransferase(AST), international normalized ratio(INR), fibrinogen(Fbg), lactate dehydrogenase(LDH), tumor specific growth factor(TSGF) and ferritin(Ferritin) of the COVID-19 group were remarkably higher than those of the non-COVID-19 group. The COVID-19 patients had a higher frequency of air bronchogram, reticular pattern, number of affected lobes and number of affected segments, but a lower frequency of centrilobular nodules than did the non-COVID-19 patients. The length of hospital stay of the COVID-19 patients was positively correlated with the age but was negatively correlated with LYM and ALB, and the length of hospital stay of the patients complicated with diabetes mellitus and hypertension was longer than the patients with other complications. Receiver operating characteristic(ROC) curve analysis showed that the areas under curves of WBC, TSGF, LDH and Ferritin were more than 75% in distinguishing between COVID-19 and non-COVID-19. Multivariate logistic regression analysis showed that TSGF, LDH and Ferritin were the independent factors for distinguishing between COVID-19 and non-COVID-19, and the area under curve of the joint detection of the three indexes was 0.9181. CONCLUSION: The ordinary COVID-19 patients and non-COVID-19 patients vary in some clinical characteristic, imaging features and clinical laboratory indexes. The joint diagnosis model of TSGF, LDH and Ferritin may be used as an effective indicator for distinguishing between ordinary COVID-19 and non-COVID-19.

Assessment of coagulopathy, inflammation and LDH activity in SARS-CoV-2-infected patients

The patho-physiology of COVID19 is still not clear. This study investigated the status of coagulation, LDH activity, and inflammation in SARS-CoV-2 infected patients. One hundred and thirty-four newly diagnosed COVID19 infected patients (age ranged 65-82 years) attending Mullingar Regional Hospital, Mullingar, Republic of Ireland, volunteered to participate in this study. They all presented with a pulmonary disorder, pyrexia, vomiting, body pains, etc. SARS-CoV-2 confirmatory test was done with RT-PCR molecular test using Cepheid Genexpert System. The data of another 121 plasma samples of apparently normal, non-COVID19 infected individuals taken before the emergence of COVID19 served as controls. Levels of blood platelets was determined in the participants using Siemen ADVIA 2120 Haematological System, and plasma D-dimer was determined in the participants using Star Max-Stago-Automatic Coagulation Analyzer LDH activity, plasma ferritin, and C-reactive protein (CRP) were determined in the participants using Beckman AU680-Chemistry Analyser. SARS-CoV-2 -infected patients showed significantly (p< 0.001) higher levels of D-dimer (1522.95+1395.45 ng/ml), CRP (125.3+116.4 mg/l), ferritin (488.5+514.9pg/l), and LDH activity (574.4+446.7iu/l) compared to controls (78.8+18.1 ng/ml, 2.4+1.7 mg/l, 61.3+58.2pg/l, 304.1+76.6iu/l respectively). The blood platelet count did not show significant (p>0.05) change in the COVID19 patients (252.2 x 109+101 x 109) compared to controls (256.4 x 109+63.2 x 109). Elevated LDH activity could indicate tissue breakdown in the SARS-Cov-2 infected patients. Hyper-coagulation and inflammation are imminent in the COVID19 patients. Adjuvant anticoagulant and anti-inflammatory therapies may be useful as part of therapeutic regimen in the SARS-CoV-2 infected patients.

Clinical and laboratory features in COVID-19 patients without anti-SARS-CoV-2 antibody

Objective: The aim of this study is to investigate the clinical and laboratory features in confirmed COVID-19 patients without specific anti-SARS-CoV-2 antibody,it is important to interpret SARS-CoV-2 antibody test results correctly and provide effective management for COVID-19 patients without specific anti-SARS-CoV-2 antibody.

Clinical features of 51 patients with corona virus disease 2019

Objective: To investigate the clinical characteristics of corona virus disease 2019 (COVID-19) patients in Wuhan City, and the correlation between inflammatory factors and severity.

Comparing clinical and Para-clinical findings and risk factors among COVID-19 survived and deceased patients in north of Iran, 2019-2020

Background and purpose: Coronavirus disease 2019 (COVID-19) is an emerging infectious disease that was first reported in December 2019 in China and spread rapidly around the world. The aim of this study was to compare clinical and laboratory findings and disease outcome between survived and deceased COVID-19 patients admitted to Qaemshahr Razi Hospital, Iran. Materials and methods: In this retrospective study, demographic, clinical, paraclinical, and treatment information of hospitalized COVID-19 patients were analyzed. Logistic regression analysis was performed using SPSS V25.