Should we delay COVID-19 vaccination in children?

Antibody but not T-cell response after first dose of Pfizer COVID-19 vaccine is weakened in patients receiving methotrexate

Study shows that antibodies generated by CoronaVac COVID-19 vaccine are less effective against the P.1 Brazil variant

The Lancet: CoronaVac COVID-19 vaccine is safe and protects against disease, interim analysis