The European Centre for Disease Prevention and Control (ECDC) and EMA’s COVID-19 task force (ETF) have concluded that it is too early to consider using a fourth dose of mRNA COVID-19 vaccines (Pfizer’s Comirnaty and...
The human body’s T cells provide long-lasting memory against the virus following vaccination or infection from COVID-19, a study led by the Peter Doherty Institute for Infection and Immunity (Doherty Institute) has...
Kenya identified its first case of Covid-19 on 12th March 2020. It has since then undertaken a series of measures to contain the spread and management of the disease in the country. In a population of approximately 54...
High coverage rates of vaccination against COVID-19 are envisaged to end the pandemic. However, waning of vaccine-induced protection is a growing concern that has been fostered by data on vaccine effectiveness against...
The cardiovascular complications of acute coronavirus disease 2019 (COVID-19) are well described, but the post-acute cardiovascular manifestations of COVID-19 have not yet been comprehensively characterized. Here we...
New research to be presented at this year’s European Congress of Clinical Microbiology & Infectious Diseases (ECCMID 2022, Lisbon, 23-26 April) shows that, although over time the number of SARS-CoV-2 antibodies...
In 2020–2021, a group of researchers from Gomel State Medical University conducted a prospective comparative clinical research that clearly demonstrates the differences in immunogenicity and reactogenicity of Sputnik V...
Findings from the UK’s world-leading human challenge study provide new insights into mild infections with SARS-CoV-2 in healthy young adults. The collaborative study is the first in the world to perform detailed...
Like in many countries, Cameroon, a Central African Country, was quick to introduce and roll out COVID-19 vaccines. These introductions were preceded by a recommendation for the National Immunization Technical and...
People previously infected with SARS-CoV-2 are substantially protected against COVID-19 for several months, even in the absence of vaccination, a study found. Beyond that, however, their natural immunity wanes but may...