Many predicted that the coronavirus – like the seasonal flu – would retreat in the summer before roaring back in a second, more severe wave. But epidemiologists are now eschewing that idea. Instead, according to WHO, the pandemic is probably "going to be one big wave."

It has been suggested that SARS-CoV-2 employs the enzyme ACE2 for host cell entry, and that penetration of SARS-CoV-2 via this receptor would explain the severe clinical manifestations observed in various tissues and organs, including the respiratory system.

Researchers have found that blood samples from healthy people who were never exposed to the SARS-CoV-2 coronavirus contain reactive immune cells and targeted antibodies that could, perhaps, help stave off COVID-19.

New findings suggest that patients become ill because their immune systems can't do enough to protect them from the virus, landing them in intensive care units. They suggest that boosting immunity could be a potential treatment strategy for COVID-19.

Scientists have discovered that only around 60% of patients who have had COVID-19 and recovered from it develop protective antibodies and, for the first time, they were able to show that some antibodies even assist the virus by augmenting it to the cells of the host.