People are being reinfected immediately again after #Omicron infection!!
A new study shows that immunity based upon “mild" Omicron infection is weak for Omicron reinfection, and limited for cross immunity to Delta infection. 1/
A new study shows that immunity based upon “mild" Omicron infection is weak for Omicron reinfection, and limited for cross immunity to Delta infection. 1/
Overall, immunity from Omicron infection is much lower than the immunity from Delta infection, correlated with the severity of infection. 2/
What does that mean?
Unless you get a severe infection with all of its consequences you also don’t get immunity from having another infection.
And recall even immunity from severe infection wanes rapidly in a few months. 3/
Unless you get a severe infection with all of its consequences you also don’t get immunity from having another infection.
And recall even immunity from severe infection wanes rapidly in a few months. 3/
The other findings:
The researchers found a significantly smaller rise of neutralization titers associated with milder #Omicron #breakthrough infection in vaccinated individuals, to only approximately one-third of the rise associated with boosting. 4/
The researchers found a significantly smaller rise of neutralization titers associated with milder #Omicron #breakthrough infection in vaccinated individuals, to only approximately one-third of the rise associated with boosting. 4/
They also identified limited cross-variant immunity to Delta.
Taken together, the results suggest that Omicron-induced immunity may not be sufficient to prevent infection from another, more pathogenic variant, should it emerge in the future. 5/
medrxiv.org/content/10.110…
Taken together, the results suggest that Omicron-induced immunity may not be sufficient to prevent infection from another, more pathogenic variant, should it emerge in the future. 5/
medrxiv.org/content/10.110…
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