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Showing Original Post only (View all)Antibody levels in recovered COVID-19 patients decline quickly [View all]
Source: Reuters
Levels of an antibody found in recovered COVID-19 patients fell sharply in 2-3 months after infection for both symptomatic and asymptomatic patients, according to a Chinese study, raising questions about the length of any immunity against the novel coronavirus.
The research, published in Nature Medicine on June 18, highlights the risks of using COVID-19 immunity passports and supports the prolonged use of public health interventions such as social distancing and isolating high-risk groups, researchers said.
Health authorities in some countries such as Germany are debating the ethics and practicalities of allowing people who test positive for antibodies to move more freely than others who dont.
The research, which studied 37 symptomatic patients and 37 asymptomatic patients, found that of those who tested positive for the presence of the IgG antibody, one of the main types of antibodies induced after infection, over 90% showed sharp declines in 2-3 months.
Read more: https://www.reuters.com/article/us-health-coronavirus-antibody-idUSKBN23T1CJ
This is also what happens in terms of the common cold, which is also a coronavirus.