osma, (edited ) 
COVID-19 is not like the flu: unlike influenza vaccines, the repeated and updated COVID vaccines develop a broad, effective antibody response, finds a new study. Now, if only it was actually possible to get a repeat, updated vaccination.
#covid #vaccine
https://medicine.wustl.edu/news/repeat-covid-19-vaccinations-elicit-antibodies-that-neutralize-variants-other-viruses/