Sub-Journal of "Science": Infection with the new crown "old" virus is not enough to completely prevent new variants!

Some epidemiological reports point out that with the emergence of new variants of the new coronavirus, more and more cases of individuals who have been infected with the new coronavirus are re-infected by the new variants

Recently, a research paper published in Science Translational Medicine, a sub-Journal of "Science", through non-human primate experiments showed that for the new coronavirus alpha variant (ie B.

The B.

In order to confirm how much protection the natural immunity caused by the WA1/2020 virus strain can provide, the researchers first infected 18 macaques with WA1/2020

The first set of experimental results showed that the natural immunity of WA1/2020 provides strong protection, enough to prevent animals from being infected by WA1/2020 again

In contrast, the B.

For the B.

▲The second challenge test of rhesus monkeys detects the viral load of the lower and upper respiratory tracts, showing that the first infection with the WA1/2020 virus strain has partial but incomplete protection for the two new variants (picture source: reference [1] )

Based on these data, the research author pointed out in the paper that the natural immunity triggered by the originally discovered new coronavirus strain WA1/2020 provides strong short-term protection to prevent re-infection with the same new coronavirus strain; but for some variants, it provides Partial but incomplete protection

Reference materials:

[1] Abishek Chandrashekar et al.