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Coronavirus antibodies short lived in mild coronavirus patients

Researchers studying people infected with mild coronavirus (COVID-19) found that antibodies against the virus drop sharply over the first three months after infection.

An in-depth study of 34 people by scientists at the University of California, Los Angeles found a rapid drop in antibodies – the immune system proteins that help stop viruses from infecting cells in the body, fall by half every 73 days.

They tested their blood two or three times over three months.




The findings raise concerns of immunity against SARS-CoV-2 on people infected with the virus mildly.

The study added that further research was needed to define a quantitative protection threshold and rate of decline of antiviral antibodies beyond 90 days


studying people infected with mild coronavirus (COVID-19) found that antibodies against the virus drop sharply over the first three months after infection.



An in-depth study of 34 people by scientists at the University of California, Los Angeles found a rapid drop in antibodies – the immune system proteins that help stop viruses from infecting cells in the body, fall by half every 73 days.

They tested their blood two or three times over three months.

The findings raise concerns of immunity against SARS-CoV-2 on people infected with the virus mildly.

The study added that further research was needed to define a quantitative protection threshold and rate of decline of antiviral antibodies beyond 90 days