UK coronavirus antibody test validated – but results show under-40s may not be immune
Younger people who had tested positive for virus came back negative, suggesting test may not be useful for wider population
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Tests aimed at determining whether Britons have recovered from coronavirus may not be useful because younger people do not produce sufficient quantities of antibodies to the virus, early research suggests.
It was hoped that antibody tests could help kickstart the economy by allowing those who are immune out of lockdown.
It sounds as if the 1st problem is the crappy Chinese tests, a second is that it is unknown how long immunity lasts, and I’m guessing the 3rd is that mild or asymptomatic cases may not develop full immunity (sort of like a flu vaccine that is “off” / targeted the wrong strain.) For example, what if a healthy person gets infected by a moderate viral load, recovers from mild illness, and then gets a heavy dose of the virus 3 months later? Are they reinfected and mildly ill / carriers again?