ஸ்பைக் இக் News Today : Breaking News, Live Updates & Top Stories | Vimarsana
Low-dose mRNA-1273 COVID-19 vaccine generates durable memory enhanced by cross-reactive T cells
science.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from science.org Daily Mail and Mail on Sunday newspapers.
Novavax Announces Positive Data from Three Complementary Studies of COVID-19 Beta (B 1 351) Variant Strain Vaccine
morningstar.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from morningstar.com Daily Mail and Mail on Sunday newspapers.
Researchers identify aluminum hydroxide/TLR9 agonist as potential adjuvant to improve RBD-based COVID-19 vaccine efficacy
news-medical.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from news-medical.net Daily Mail and Mail on Sunday newspapers.
Researchers conduct a SARS-CoV-2 serosurvey of blood donors in New Zealand
Various strategies are being deployed across the globe to curb the ongoing coronavirus disease 2019 (COVID-19) pandemic. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the novel causal agent of the COVID-19. This virus is highly contagious and is transmitted via primarily via respiratory droplets from infected individuals.
The approaches undertaken by New Zealand have been reported to have effectively reduced the incidence of COVID-19. In New Zealand, the first COVID-19 infection was reported on February 26, 2020. After a month of the first incidence, the country implemented a strict lockdown for 49 days. They followed an arduous border control, skillfully managed the quarantine facilities for new arrivals, and had also effectively managed isolation programs. As a result, New Zealand remained mostly free from COVID-19. It must, however, be noted that initially, owing to limited diagnostic re
SARS-CoV-2 Induces Polyfunctional Antibodies That Kill Infected Cells
Source: KTSDESIGN/Science Photo Library/Getty Images
April 22, 2021
Share
It is well understood that people with COVID-19 experience a wide range of symptoms. However, from asymptomatic carriers to hospitalized patients, little is known about the severity of disease and the extent and quality of the immune response. Now, a team of researchers has demonstrated that infection induces polyfunctional antibodies by studying the antibodies induced in individuals with asymptomatic or symptomatic SARS-CoV-2 infection.
Beyond neutralization of the virus, these antibodies can activate NK (natural killer) cells or the complement system, leading to the destruction of infected cells. Antibody levels are slightly lower in asymptomatic as opposed to symptomatic individuals, but polyfunctional antibodies were found in all individuals. These findings show that infection induces antibodies capable of killing infected cells rega