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...
Throughout their evolutionary history, multicellular animals have been infected by microorganisms. In response, they developed a series of defenses that are used today. Physical and chemical barriers, such as the skin and mucous surfaces, confine microorganisms to the...
Natural killer cells (NK cells) are a type of lymphocyte (LGL -Large Granular Lymphocyte) and a component of the innate immune system. NK cells are activated in response to interferons or macrophage-derived cytokines. In the host innate...
