Antibody combinations may be more effective at preventing, treating COVID-19

Laverne Higgins
November 21, 2020

During the study, 89 of 11,052 staff without antibodies developed COVID-19 with symptoms.

A new study supports evidence that delirium can predict coronavirus infection in older patients who show no other typical symptoms of Covid-19.

It is still not entirely clear how long contracting the virus confers immunity, with early studies suggesting a period of a few months, which, therefore, means that it may only provide temporary protection against reinfection.

In this study, a research team at the Medical Center - University of Freiburg in Germany found that after recovery from SARS-CoV-2 infection, immune cells are formed which remain in the body and could mediate a rapid immune response in case of reinfection.

"However, the neutralizing activity of antibodies to SARS-CoV-2 has primarily been tested using cells cultured in the laboratory, and how these in vitro results translate to protection in animals or humans has not been determined".

The paper concluded this immunity was likely to be there "because of previous infection with coronaviruses other than SARS-CoV-2", for example the common cold virus.

The T-cells - the immune component that both kills off infected cells and helps B-cells make antibodies - were found to still be present at six months.

The new study examined 817 elderly patients of Covid-19.

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Another recent study highlighted the importance of T cells response as they were detected in individuals who contracted SARS 17 years after the initial infection, according to the study.

In this study, the team of researchers at the La Jolla Institute of Immunology in California, and the Icahn School of Medicine at Mount Sinai in NY, investigated multiple compartments of circulating immune memory to SARS-CoV-2 in 185 Covid-19 cases, including 41 cases more than six months post-infection.

Immunity to coronavirus lasts at least eight months and may even continue for years, new research has suggested.

The findings should offer some reassurance for the more than 51 million people worldwide who have been infected with the pandemic disease, researchers at the University of Oxford said.

As record-breaking numbers of COVID-19 infections continue to surge across the US, scientists at St. Jude Children's Research Hospital say they've found a possible COVID-19 treatment, and suggest that the "process driving life-threatening inflammation, lung damage and organ failure in patients with COVID-19, sepsis and other inflammatory disorders" could possibly be treated using existing drugs.

Children usually develop the disease mildly, but the exceptions (severe covid-19 conditions that lead to death) exist. Covid-19: Two of the vaccine front runners have already reported promising evidence - so what now?

The ages of the subjects having recovered from covid-19 ranged from19 to 81 in the United States.

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