All viruses, including the one that causes covid-19, mutate. These tiny genetic changes happen as the virus makes new copies of itself. Most are irrelevant and some may even be detrimental to the virus’s survival, but others can make it more infectious or...
Nowadays, 2021 January, many cases of bird flu have been reported in India. Several states have issued bird flu alert. The Centre has warned the states over possibility of the disease spreading to humans. Influenza A virus subtype H5N1 (A/H5N1) is a subtype of...
The immune system has numerous ways to protect us from viruses. One of them is the production of specific antibodies against some epitopes of the virus by B-Lymphocytes (Plasmocytes). Some memory B lymphocytes that produce these antibodies can be selected and reserved...
O sistema imunológico tem várias maneiras de nos proteger contra vírus. Um deles é a produção de anticorpos específicos contra alguns epítopos do vírus pelos Linfócitos B (Plasmócitos). Alguns linfócitos B de memória que produzem esses anticorpos podem ser...
The coronavirus SARS-CoV-2 has only been circulating in human hosts for a few months, less than one year, which means that there is simply no way to know whether immunity to the disease lasts longer than that. How long immunity lasts is a big question. Research can...
