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Antibody neutralizes SARS and COVID-19 coronaviruses

An antibody first identified in a blood sample from a patient who recovered from Severe Acute Respiratory Syndrome in 2003 inhibits related coronaviruses, including the cause of COVID-19.

The antibody, called S309, is now on a fast-track development and testing path at Vir Biotechnology in the next step toward possible clinical trials.

Early indicators of vaccine efficacy

Ludwig-Maximilians-Universität (LMU) in Munich researchers have shown that a specific class of immune cells in the blood induced by vaccination is an earlier indicator of vaccine efficacy than conventional tests for neutralizing antibodies. The current coronavirus pandemic, together with episodic outbreaks of infections caused by other pathogenic viruses, represent a growing threat to societies around the world, especially when effective vaccines are either lacking altogether or are in short supply.

Arthritis drug may improve respiratory function in some patients with severe COVID-19

A small study in Greece found that the clinically approved anti-inflammatory drug anakinra, used to treat rheumatoid arthritis, improved respiratory function in patients with severe coronavirus disease 2019 (COVID-19). The eight patients also had a condition called secondary hemophagocytic lymphohistiocytosis (sHLH), which is characterized by overactivation of the immune system and organ failure.

Frankfurt researchers discover potential targets for COVID-19 therapy

A team of biochemists and virologists at Goethe University and the Frankfurt University Hospital were able to observe how human cells change upon infection with SARS-CoV-2, the virus causing COVID-19 in people. The scientists tested a series of compounds in laboratory models and found some which slowed down or stopped virus reproduction. These results now enable the search for an active substance to be narrowed down to a small number of already approved drugs.

How COVID-19 kills

COVID-19, the disease caused by coronavirus SARS-Cov-2, has infected over 4 million people in 212 countries, of whom at least 272,000 have died. The ongoing economic and social impact of the pandemic is staggering, but despite a daily flood of news on the disease, few laypeople know that paradoxically, COVID-19 mostly kills through an overreaction of the immune system, whose function is precisely to fight infections.

In France, population immunity to SARS-CoV-2 at about 4.4% in May, modeling suggests

By 11 May, when lockdown restrictions were eased in France, about 4.4% of the French population had been infected with SARS-CoV-2, a new modeling study suggests. These estimates are well short of what would be required for herd immunity, say the authors. Understanding the level of immunity to SARS-CoV-2 will be key to avoiding a rebound in the epidemic as populations around the world ease lockdowns.

The challenges of developing a safe and effective COVID-19 vaccine

The goal of a vaccine is to trigger a response that safely protects against an infection and/or the burden of disease. While this is true for all vaccines, the steps leading to a safe and effective product can be different for each infection. In the case of COVID-19, caused by the virus SARS-CoV-2, researchers at Baylor College of Medicine and Texas Children's Hospital have found that vaccine design can

Research & Development News

Antibody neutralizes SARS and COVID-19 coronaviruses

Early indicators of vaccine efficacy

Arthritis drug may improve respiratory function in some patients with severe COVID-19

Frankfurt researchers discover potential targets for COVID-19 therapy

How COVID-19 kills

In France, population immunity to SARS-CoV-2 at about 4.4% in May, modeling suggests

The challenges of developing a safe and effective COVID-19 vaccine

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