Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 20 de 96
Filter
Add filters

Year range
1.
BMC Public Health ; 21(1): 226, 2021 01 27.
Article in English | MEDLINE | ID: covidwho-1099882

ABSTRACT

BACKGROUND: As COVID-19 continues to spread around the world, understanding how patterns of human mobility and connectivity affect outbreak dynamics, especially before outbreaks establish locally, is critical for informing response efforts. In Taiwan, most cases to date were imported or linked to imported cases. METHODS: In collaboration with Facebook Data for Good, we characterized changes in movement patterns in Taiwan since February 2020, and built metapopulation models that incorporate human movement data to identify the high risk areas of disease spread and assess the potential effects of local travel restrictions in Taiwan. RESULTS: We found that mobility changed with the number of local cases in Taiwan in the past few months. For each city, we identified the most highly connected areas that may serve as sources of importation during an outbreak. We showed that the risk of an outbreak in Taiwan is enhanced if initial infections occur around holidays. Intracity travel reductions have a higher impact on the risk of an outbreak than intercity travel reductions, while intercity travel reductions can narrow the scope of the outbreak and help target resources. The timing, duration, and level of travel reduction together determine the impact of travel reductions on the number of infections, and multiple combinations of these can result in similar impact. CONCLUSIONS: To prepare for the potential spread within Taiwan, we utilized Facebook's aggregated and anonymized movement and colocation data to identify cities with higher risk of infection and regional importation. We developed an interactive application that allows users to vary inputs and assumptions and shows the spatial spread of the disease and the impact of intercity and intracity travel reduction under different initial conditions. Our results can be used readily if local transmission occurs in Taiwan after relaxation of border control, providing important insights into future disease surveillance and policies for travel restrictions.


Subject(s)
/epidemiology , Communicable Diseases, Imported/epidemiology , Disease Outbreaks , Travel/statistics & numerical data , Forecasting , Humans , Models, Biological , Risk , Social Media , Taiwan/epidemiology , Travel/legislation & jurisprudence
2.
BMC Complement Med Ther ; 21(1): 70, 2021 Feb 19.
Article in English | MEDLINE | ID: covidwho-1090677

ABSTRACT

BACKGROUND: Large-scale epidemics have changed people's medical behavior, and patients tend to delay non-urgent medical needs. However, the impact of the pandemic on the use of complementary and alternative medicine remains unknown. METHODS: This retrospective study aimed to analyze the changes in the number of traditional Chinese medicine (TCM) patients and examine the epidemic prevention policy during the coronavirus disease 2019 (COVID-19) pandemic. We analyzed the number of TCM patients in Taipei City Hospital from January 2017 to May 2020. We tallied the numbers of patients in each month and compared them with those in the same months last year. We calculated the percentage difference in the number of patients to reveal the impact of the COVID-19 pandemic on TCM utilization. We used the Mann-Whitney U test to examine whether there was a significant difference in the number of patients during the COVID-19 pandemic. RESULTS: We included a total of 1,935,827 TCM visits of patients from January 2017 to May 2020 in this study. During the COVID-19 pandemic, the number of patients decreased significantly, except in February 2020. The number of patients during the COVID-19 pandemic had fallen by more than 15% compared with those in the same months last year. March and April had the greatest number of patient losses, with falls of 32.8 and 40% respectively. TCM patients declined significantly during the COVID-19 pandemic, and mobile medicine provided to rural areas fell considerably. Among all the TCM specialties, pediatrics and traumatology, as well as infertility treatment, witnessed the most significant decline in the number of patients. However, the number of cancer patients has reportedly increased. CONCLUSIONS: The COVID-19 pandemic decreased the utilization rate of TCM, especially for mobile healthcare in rural areas. We suggest that the government pay attention to the medical disparity between urban and rural areas, which are affected by the pandemic, as well as allocate adequate resources in areas deprived of medical care.


Subject(s)
Ambulatory Care/statistics & numerical data , Medicine, Chinese Traditional/statistics & numerical data , /virology , Humans , Pandemics , Retrospective Studies , Taiwan/epidemiology
4.
Int J Environ Res Public Health ; 18(4)2021 02 06.
Article in English | MEDLINE | ID: covidwho-1069814

ABSTRACT

Coronavirus disease 2019 (COVID-19) is a novel infectious disease which has had a great impact on the public. Further investigations are, therefore, needed to investigate how the public copes with COVID-19. This study aimed to develop a model to estimate the mediating effects of risk perception and confidence on the association between perceived social support and active coping with the COVID-19 pandemic among people in Taiwan. The data of 1970 participants recruited from a Facebook advertisement were analyzed. Perceived social support, active coping with COVID-19, risk perception and confidence were evaluated using self-administered questionnaires. Structural equation modeling was used to verify the direct and indirect effects between variables. The mediation model demonstrated that lower perceived social support was significantly associated with a higher level of active coping with COVID-19, and this was mediated by a higher level of risk perception. The present study identified the importance of risk perception on the public's coping strategies during the COVID-19 pandemic.


Subject(s)
Adaptation, Psychological , Pandemics , Social Support , Humans , Risk Assessment , Surveys and Questionnaires , Taiwan/epidemiology
5.
Cell Transplant ; 30: 963689720987527, 2021.
Article in English | MEDLINE | ID: covidwho-1021285

ABSTRACT

Since its outbreak in China, the Coronavirus disease 2019 (COVID-19) pandemic has caused worldwide disaster. Globally, there have been 71,581,532 confirmed cases of COVID-19, including 1,618,374 deaths, reported to World Health Organization (data retrieved on December 16, 2020). Currently, no treatment modalities for COVID-19 (e.g., vaccines or antiviral drugs) with confirmed efficacy and safety are available. Although the possibilities and relevant challenges of some alternatives (e.g., use of stem cells as immunomodulators) have been proposed, the personal protective equipment is still the only way to protect and lower infection rates of COVID-19 among healthcare workers and airway managers (intubators). In this article, we described the combined use of a plastic sheet as a barrier with the intubating stylet for tracheal intubation in patients needing mechanical ventilation. Although conventional or video-assisted laryngoscopy is more popular and familiar to other groups around the world, we believe that the video-assisted intubating stylet technique is much easier to learn and master. Advantages of the video stylet include the creation of greater working distance between intubator and patient, less airway stimulation, and less pharyngeal space needed for endotracheal tube advancement. All the above features make this technique reliable and superior to other devices, especially when a difficult airway is encountered in COVID scenario. Meanwhile, we proposed the use of a flexible and transparent plastic sheet to serve as a barrier against aerosol and droplet spread during airway management. We demonstrated that the use of a plastic sheet would not interfere or hinder the intubator's maneuvers during endotracheal intubation. Moreover, we demonstrated that the plastic sheet was effective in preventing the spread of mist and water spray in simulation models with a mannequin. In our experience, we found that this technique most effectively protected the intubator and other operating room personnel from infection during the COVID-19 pandemic.


Subject(s)
/therapy , Infectious Disease Transmission, Professional-to-Patient/prevention & control , Intubation, Intratracheal/instrumentation , Personal Protective Equipment , /epidemiology , Humans , Intubation, Intratracheal/methods , Plastics/chemistry , Taiwan/epidemiology , Video Recording/instrumentation
7.
Front Public Health ; 8: 604089, 2020.
Article in English | MEDLINE | ID: covidwho-1005926

ABSTRACT

Background and objective: Public health interventions such as social distancing, wearing surgical or N95 masks, and handwashing are effective in significantly reducing the risk of infection. The purpose of this article is to analyze the effect of public health interventions on respiratory tract infection-related visits to pediatric emergency departments during the COVID-19 pandemic in Taiwan. Method: Pediatric emergency department visits between January 1 2020 and April 30 2020 were included for trend analysis and compared to the same period during the past 3 years. The datasets were retrieved from Taiwan National Infectious Disease Statistics System and Kaohsiung Chang Gung Memorial Hospital. Respiratory tract infections with other diagnoses categories, including fever, asthma, and urinary tract infections, were included for subgroup analysis. Result: A significant decrease of more than 50% in respiratory tract infection-related visits was found from February to April 2020 in the national database. With regard to diagnosis category, the proportion of respiratory tract infections in Kaohsiung Chang Gung Hospital also became significantly lower in 2020 during the months of March (43.4 vs. 37.4%, p = 0.024) and April (40.1 vs. 32.2%, p < 0.001). On the other hand, the proportion of urinary tract infections was significantly higher in 2020 during March (3.7 vs. 5.2%, p = 0.033) and April (3.9 vs. 6.5%, p < 0.001), and that of asthma was also higher in April (1.6 vs. 2.6%, p = 0.025). Furthermore, the intensive care unit admission rate was relatively higher in 2020 from February, with significant differences noted in March (1.3 vs. 2.8%, p < 0.001). Conclusion: Due to public health interventions for the COVID-19 pandemic, the transmission of not only COVID-19 but also other air droplet transmitted diseases in children may have been effectively prevented.


Subject(s)
/prevention & control , Emergency Service, Hospital/statistics & numerical data , Hospitals, Pediatric/statistics & numerical data , Pandemics/prevention & control , Public Health/methods , Respiratory Tract Infections/epidemiology , Respiratory Tract Infections/prevention & control , Adolescent , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Taiwan/epidemiology
8.
Int J Environ Res Public Health ; 17(21)2020 10 31.
Article in English | MEDLINE | ID: covidwho-983335

ABSTRACT

This study aimed to determine the proportion of individuals who voluntarily reduced interaction with their family members, friends, and colleagues or classmates to avoid coronavirus disease 2019 (COVID-19) infection and the associations of reduced social interaction with perceived social support during the COVID-19 pandemic in Taiwan. Moreover, the related factors of voluntary reduction of social interaction were examined. We recruited participants via a Facebook advertisement. We determined the reduced social interaction, perceived social support, cognitive and affective constructs of health belief and demographic characteristics among 1954 respondents (1305 women and 649 men; mean age: 37.9 years with standard deviation 10.8 years). In total, 38.1% of respondents voluntarily reduced their social interaction with friends to avoid COVID-19 infection, 36.1% voluntarily reduced their interaction with colleagues or classmates, and 11.1% voluntarily reduced interaction with family members. Respondents who voluntarily reduced interaction with other people reported lower perceived social support than those who did not voluntarily reduce interaction. Respondents who were older and had a higher level of worry regarding contracting COVID-19 were more likely to voluntarily reduce interaction with family members, friends, and colleagues or classmates to avoid COVID-19 infection than respondents who were younger and had a lower level of worry regarding contracting COVID-19, respectively. The present study revealed that despite strict social distancing measures not being implemented in Taiwan, more than one-third of respondents voluntarily reduced their interaction with friends and colleagues or classmates. The general public should be encouraged to maintain social contacts through appropriately distanced in-person visits and telecommunication.


Subject(s)
Coronavirus Infections/psychology , Coronavirus , Interpersonal Relations , Pandemics/prevention & control , Pneumonia, Viral/psychology , Quarantine/psychology , Social Isolation/psychology , Social Support , Adult , Betacoronavirus , Coronavirus Infections/epidemiology , Coronavirus Infections/prevention & control , Female , Humans , Male , Pneumonia, Viral/epidemiology , Pneumonia, Viral/prevention & control , Surveys and Questionnaires , Taiwan/epidemiology
9.
Int J Tuberc Lung Dis ; 24(12): 1321-1322, 2020 12 01.
Article in English | MEDLINE | ID: covidwho-977792
10.
Int J Environ Res Public Health ; 17(24)2020 12 13.
Article in English | MEDLINE | ID: covidwho-971025

ABSTRACT

This study aimed to compare risk perception, information sources, adoption of protective behaviors against coronavirus disease 2019 (COVID-19), and levels of general anxiety among affiliated health care professionals, frontline health care professionals, and the general public in Taiwan. We recruited participants via a Facebook advertisement. We determined the risk perception, information sources, adoption of protective behaviors against COVID-19, and levels of general anxiety among 1954 respondents. In total, 269 affiliated healthcare workers, 371 frontline healthcare workers, and 1314 members of the general public were recruited into this study. The results indicated that both affiliated and frontline health care professionals had a higher level of risk perception of COVID-19, and more adopted protective behaviors against COVID-19 than the general public. No significant differences in risk perception or the adoption of protective behaviors were identified between affiliated, and frontline, health care professionals. Affiliated health care professionals had a lower level of general anxiety than the general public, whereas frontline health care professionals exhibited no significant difference in level of general anxiety compared with the general public or affiliated health care professionals. As important members of COVID-19 treatment teams, the need for psychological and educational support in affiliated health care professionals should receive attention.


Subject(s)
Anxiety/epidemiology , Health Personnel/psychology , Mental Health , Pandemics , Health Behavior , Humans , Risk Assessment , Taiwan/epidemiology
12.
Int J Environ Res Public Health ; 17(22)2020 11 18.
Article in English | MEDLINE | ID: covidwho-934492

ABSTRACT

The coronavirus disease 2019 (COVID-19) outbreak has significantly disrupted normal activities globally. During this epidemic, people around the world were expected to encounter several mental health challenges. In particular, Internet addiction may become a serious issue among teens. Consequently, this study aimed to examine the prevalence of Internet addiction and identify the psychosocial risk factors during the COVID-19 outbreak. This study was constructed using a cross-sectional design with 1060 participants recruited from among junior high school students around Taiwan using stratified and cluster sampling methods. Taiwan's first COVID-19 case was diagnosed on 28 January 2020. New cases exploded rapidly in February, and as a result, participants were surveyed during March 2 through 27 March 2020. The prevalence of Internet addiction was found to be 24.4% during this period. High impulsivity, high virtual social support, older in age, low subjective well-being, low family function, and high alexithymia was all independently predictive in the forward logistic regression analyses. The prevalence rate of Internet addiction was high among junior high school students during the COVID-19 outbreak. Results from this study can be used to help mental health organizations and educational agencies design programs that will help prevent Internet addiction in adolescents during the COVID-19 pandemic.


Subject(s)
Behavior, Addictive , Coronavirus Infections , Pandemics , Pneumonia, Viral , Adolescent , Behavior, Addictive/epidemiology , Betacoronavirus , Cross-Sectional Studies , Humans , Prevalence , Risk Factors , Students , Surveys and Questionnaires , Taiwan/epidemiology
13.
Int J Environ Res Public Health ; 17(21)2020 10 30.
Article in English | MEDLINE | ID: covidwho-921189

ABSTRACT

This study explored the associations of individual factors (demographic characteristics, self-confidence in responding to the coronavirus disease 2019 (COVID-19), and self-rated physical and mental health) and environmental factors (perceived confidence in COVID-19 management by the regional government and adequacy of resources and support available to address the COVID-19 pandemic) with worry toward COVID-19 and general anxiety among people in Taiwan. The Chi-square was used to compare difference for worry and anxiety among categorical variables. The logistic regression was used to examine the associations between worry as well as anxiety and individual as well as environmental factors. In total, 1970 respondents were recruited and completed an online survey on worry regarding COVID-19, general anxiety during the pandemic, and individual and environmental factors. In total, 51.7% and 43.4% of respondents reported high levels of worry toward COVID-19 and general anxiety, respectively. Exhibited worse self-rated mental health, lower self-confidence in COVID-19 management, and insufficient mental health resources were significantly associated with high levels of both worry toward COVID-19 and general anxiety. Lower perceived confidence in COVID-19 management by the regional government was associated with a higher level of worry toward COVID-19. Lower perceived social support was associated with a higher level of general anxiety during the COVID-19 pandemic. The results showed that high levels of worry toward COVID-19 and general anxiety were prevalent during the outbreak. This suggests health care providers need additional surveillance of worry and anxiety during the pandemic. Multiple individual and environmental factors related to worry toward COVID-19 and general anxiety were identified. Factors found in the present study can be used for the development of intervention programs, supportive services, and government policy to reduce worry and anxiety during the COVID-19 pandemic.


Subject(s)
Anxiety/epidemiology , Coronavirus Infections/psychology , Coronavirus , Depression/epidemiology , Pneumonia, Viral/psychology , Quality of Life/psychology , Adult , Betacoronavirus , Coronavirus Infections/epidemiology , Educational Status , Humans , Mental Health , Middle Aged , Pandemics , Pneumonia, Viral/epidemiology , Risk Factors , Surveys and Questionnaires , Taiwan/epidemiology
17.
J Med Internet Res ; 22(11): e21501, 2020 11 20.
Article in English | MEDLINE | ID: covidwho-895241

ABSTRACT

BACKGROUND: The battle against COVID-19 remains ongoing, and social media has played an important role during the crisis for both communication and health promotion, particularly for health care organizations. Taiwan's success during the COVID-19 outbreak is well known and the use of social media is one of the key contributing factors to that success. OBJECTIVE: This nationwide observational study in Taiwan aimed to explore the use of Facebook by academic medical centers during the COVID-19 pandemic. METHODS: We conducted a nationwide observational study of all Facebook fan page posts culled from the official accounts of all medical centers in Taiwan from December 2019 to April 2020. All Facebook posts were categorized into either COVID-19-related posts or non-COVID-19-related posts. COVID-19-related posts were split into 4 categories: policy of Taiwan's Center for Disease Control (TCDC), gratitude notes, news and regulations from hospitals, and education. Data from each post was also recorded as follows: date of post, headline, number of "likes," number of messages left, number of shares, video or non-video post, and date of search. RESULTS: The Facebook fan pages of 13 academic medical centers, with a total of 1816 posts, were analyzed. From January 2020, the percentage of COVID-19 posts increased rapidly, from 21% (January 2020) to 56.3% (April 2020). The trends of cumulative COVID-19 posts and reported confirmed cases were significantly related (Pearson correlation coefficient=0.93, P<.001). Pages from private hospitals had more COVID-19 posts (362 versus 289), as well as more video posts (72 posts, 19.9% versus 36 posts, 12.5%, P=.011), when compared to public hospitals. However, Facebook pages from public hospitals had significantly more "likes," comments, and shares per post (314, 5, 14, respectively, P<.001). Additionally, medical centers from different regions displayed different strategies for using video posts on Facebook. CONCLUSIONS: Social media has been a useful tool for communication during the COVID-19 pandemic. This nationwide observational study has helped demonstrate the value of Facebook for academic medical centers in Taiwan, along with its engagement efficacy. We believe that the experience of Taiwan and the knowledge it can share will be helpful to health care organizations worldwide during our global battle against COVID-19.


Subject(s)
Academic Medical Centers/statistics & numerical data , Communication , Coronavirus Infections/epidemiology , Health Promotion/statistics & numerical data , Pneumonia, Viral/epidemiology , Social Media/statistics & numerical data , Disease Outbreaks , Emotions , Hospitals , Humans , Pandemics , Taiwan/epidemiology
18.
J Prev Med Public Health ; 53(5): 293-301, 2020 Sep.
Article in English | MEDLINE | ID: covidwho-874683

ABSTRACT

OBJECTIVES: At the beginning of the coronavirus disease 2019 (COVID-19) pandemic, some countries imposed entry bans against Chinese visitors. We sought to identify the effects of border shutdowns on the spread of the COVID-19 outbreak. METHODS: We used the synthetic control method to measure the effects of entry bans against Chinese visitors on the cumulative number of confirmed cases using World Health Organization situation reports as the data source. The synthetic control method constructs a synthetic country that did not shut down its borders, but is similar in all other aspects. RESULTS: Six countries that shut down their borders were evaluated. For Australia, the effects of the policy began to appear 4 days after implementation, and the number of COVID-19 cases dropped by 94.4%. The border shutdown policy took around 13.2 days to show positive effects and lowered COVID-19 cases by 91.7% on average by the end of February. CONCLUSIONS: The border shutdowns in early February significantly reduced the spread of the virus. Our findings are informative for future planning of public health policies.


Subject(s)
Betacoronavirus , Coronavirus Infections/prevention & control , Coronavirus Infections/transmission , Health Policy/legislation & jurisprudence , Pandemics/prevention & control , Pneumonia, Viral/prevention & control , Pneumonia, Viral/transmission , Travel/legislation & jurisprudence , Australia/epidemiology , Disease Outbreaks/legislation & jurisprudence , Disease Outbreaks/prevention & control , Hong Kong/epidemiology , Humans , Pandemics/legislation & jurisprudence , Singapore/epidemiology , Taiwan/epidemiology , United States/epidemiology , Vietnam/epidemiology
19.
J Med Internet Res ; 22(10): e19878, 2020 10 14.
Article in English | MEDLINE | ID: covidwho-862647

ABSTRACT

BACKGROUND: As the COVID-19 epidemic increases in severity, the burden of quarantine stations outside emergency departments (EDs) at hospitals is increasing daily. To address the high screening workload at quarantine stations, all staff members with medical licenses are required to work shifts in these stations. Therefore, it is necessary to simplify the workflow and decision-making process for physicians and surgeons from all subspecialties. OBJECTIVE: The aim of this paper is to demonstrate how the National Cheng Kung University Hospital artificial intelligence (AI) trilogy of diversion to a smart quarantine station, AI-assisted image interpretation, and a built-in clinical decision-making algorithm improves medical care and reduces quarantine processing times. METHODS: This observational study on the emerging COVID-19 pandemic included 643 patients. An "AI trilogy" of diversion to a smart quarantine station, AI-assisted image interpretation, and a built-in clinical decision-making algorithm on a tablet computer was applied to shorten the quarantine survey process and reduce processing time during the COVID-19 pandemic. RESULTS: The use of the AI trilogy facilitated the processing of suspected cases of COVID-19 with or without symptoms; also, travel, occupation, contact, and clustering histories were obtained with the tablet computer device. A separate AI-mode function that could quickly recognize pulmonary infiltrates on chest x-rays was merged into the smart clinical assisting system (SCAS), and this model was subsequently trained with COVID-19 pneumonia cases from the GitHub open source data set. The detection rates for posteroanterior and anteroposterior chest x-rays were 55/59 (93%) and 5/11 (45%), respectively. The SCAS algorithm was continuously adjusted based on updates to the Taiwan Centers for Disease Control public safety guidelines for faster clinical decision making. Our ex vivo study demonstrated the efficiency of disinfecting the tablet computer surface by wiping it twice with 75% alcohol sanitizer. To further analyze the impact of the AI application in the quarantine station, we subdivided the station group into groups with or without AI. Compared with the conventional ED (n=281), the survey time at the quarantine station (n=1520) was significantly shortened; the median survey time at the ED was 153 minutes (95% CI 108.5-205.0), vs 35 minutes at the quarantine station (95% CI 24-56; P<.001). Furthermore, the use of the AI application in the quarantine station reduced the survey time in the quarantine station; the median survey time without AI was 101 minutes (95% CI 40-153), vs 34 minutes (95% CI 24-53) with AI in the quarantine station (P<.001). CONCLUSIONS: The AI trilogy improved our medical care workflow by shortening the quarantine survey process and reducing the processing time, which is especially important during an emerging infectious disease epidemic.


Subject(s)
Artificial Intelligence , Betacoronavirus , Quarantine , Adult , Coronavirus Infections , Female , Hospitals, Isolation , Humans , Middle Aged , Pandemics , Pneumonia, Viral , Quarantine/methods , Surveys and Questionnaires , Taiwan/epidemiology
20.
Transbound Emerg Dis ; 67(2): 884-893, 2020 Mar.
Article in English | MEDLINE | ID: covidwho-797115

ABSTRACT

Infectious bronchitis virus (IBV) causes respiratory diseases in chickens and poses an economic threat to the poultry industry worldwide. Despite vaccine use, there have been field outbreaks of IBV in Taiwan. This study aimed to characterize the emerging IBV variants circulating in Taiwan. The analysis of the structural protein genes showed that these variants emerged through frequent recombination events among Taiwan strains, China strains, Japan strains and vaccine strains. Cross-neutralization tests revealed that two of the variants exhibited novel serotypes. Clinicopathological assessment showed that two of the variants caused high fatality rates of 67% and 20% in one-day-old SPF chicks, and all the variants possessed multiorgan tropisms, including trachea, proventriculus and urogenital tissues. Furthermore, the commercial live-attenuated Mass-type vaccine conferred poor protection against these variants. This study identified novel genotypes, serotypes and pathotypes of emerging IBV variants circulating in Taiwan. There is an urgent need for effective countermeasures against these variant strains.


Subject(s)
Bronchitis/veterinary , Chickens/virology , Coronavirus Infections/veterinary , Disease Outbreaks/veterinary , Infectious bronchitis virus/genetics , Poultry Diseases/virology , Animals , Bronchitis/virology , Coronavirus Infections/epidemiology , Coronavirus Infections/virology , Female , Genetic Variation , Infectious bronchitis virus/immunology , Infectious bronchitis virus/physiology , Poultry Diseases/epidemiology , Proventriculus/virology , Specific Pathogen-Free Organisms , Taiwan/epidemiology , Trachea/virology , Viral Tropism
SELECTION OF CITATIONS
SEARCH DETAIL