![Frontiers | Presumed Protective Role for Anti-Hepatitis B Virus Antibodies Against COVID-19 Severe Cases: A Clinical Study Confirming in silico Hypothesis Frontiers | Presumed Protective Role for Anti-Hepatitis B Virus Antibodies Against COVID-19 Severe Cases: A Clinical Study Confirming in silico Hypothesis](https://www.frontiersin.org/files/Articles/909660/fmed-09-909660-HTML-r1/image_m/fmed-09-909660-g001.jpg)
Frontiers | Presumed Protective Role for Anti-Hepatitis B Virus Antibodies Against COVID-19 Severe Cases: A Clinical Study Confirming in silico Hypothesis
![Moderate Risk of Hepatitis B Virus Reactivation in HBsAg−/HBcAb+ Carriers Receiving Rituximab for Rheumatoid Arthritis | Scientific Reports Moderate Risk of Hepatitis B Virus Reactivation in HBsAg−/HBcAb+ Carriers Receiving Rituximab for Rheumatoid Arthritis | Scientific Reports](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41598-020-59406-4/MediaObjects/41598_2020_59406_Fig1_HTML.png)
Moderate Risk of Hepatitis B Virus Reactivation in HBsAg−/HBcAb+ Carriers Receiving Rituximab for Rheumatoid Arthritis | Scientific Reports
![Clinical Implications of Concurrent HBsAg/HBsAb Positivity in Patients with Chronic Hepatitis B Infection | Semantic Scholar Clinical Implications of Concurrent HBsAg/HBsAb Positivity in Patients with Chronic Hepatitis B Infection | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/ce3408bf179386422f2413d766a8d48fb3b1da69/3-Table3-1.png)
Clinical Implications of Concurrent HBsAg/HBsAb Positivity in Patients with Chronic Hepatitis B Infection | Semantic Scholar
![Vaccines | Free Full-Text | Persistence of Anti-Hbs after up to 30 Years in Health Care Workers Vaccinated against Hepatitis B Virus Vaccines | Free Full-Text | Persistence of Anti-Hbs after up to 30 Years in Health Care Workers Vaccinated against Hepatitis B Virus](https://pub.mdpi-res.com/vaccines/vaccines-09-00323/article_deploy/html/images/vaccines-09-00323-g001-550.jpg?1628018080)
Vaccines | Free Full-Text | Persistence of Anti-Hbs after up to 30 Years in Health Care Workers Vaccinated against Hepatitis B Virus
![Clinical Implications of Concurrent HBsAg/HBsAb Positivity in Patients with Chronic Hepatitis B Infection | Semantic Scholar Clinical Implications of Concurrent HBsAg/HBsAb Positivity in Patients with Chronic Hepatitis B Infection | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/ce3408bf179386422f2413d766a8d48fb3b1da69/2-Table1-1.png)
Clinical Implications of Concurrent HBsAg/HBsAb Positivity in Patients with Chronic Hepatitis B Infection | Semantic Scholar
![Anti-HBs (Hepatitis B immune status/Anti-Hepatitis B surface antibody) | Newfoundland & Labrador Public Health Laboratory Anti-HBs (Hepatitis B immune status/Anti-Hepatitis B surface antibody) | Newfoundland & Labrador Public Health Laboratory](https://publichealthlab.ca/wp-content/uploads/2012/09/Anti-HBs-Chart-2.jpg)
Anti-HBs (Hepatitis B immune status/Anti-Hepatitis B surface antibody) | Newfoundland & Labrador Public Health Laboratory
![Long-term outcomes of HBsAg/anti-HBs double-positive versus HBsAg single-positive patients with chronic hepatitis B | Scientific Reports Long-term outcomes of HBsAg/anti-HBs double-positive versus HBsAg single-positive patients with chronic hepatitis B | Scientific Reports](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41598-019-56015-8/MediaObjects/41598_2019_56015_Fig1_HTML.png)