These vaccines have been extensively and rigorously tested by numerous scientific and independent medical organizations nationally and internationally, and testing is ongoing. Young populations have have been less well tested, and, for obvious reasons, longitudinal testing cannot yet be done.
Monitoring and reporting seem very robust. At the first indication there might be an issue with blood clots with one of the vaccines, several countries immediately ceased administering it. Apparently, after further examination, blood clot incidence in vaccinated persons was fewer than controls. In the context of a devestating pandemic, the process seems to be surprisingly transparent and cautiously monitored.
In any case, as millions are vaccinated, the evidence is that the vaccine appears safe and life- saving. Longitudinally, there remains much to be learned, particularly regarding effectiveness against new variants. One caution I think we must take; however, is to maintain CDC covid guidelines, mask, distancing, hand washing, until scientists understand current vaccines' effectiveness against the new variants now appearing.
Monitoring and reporting seem very robust. At the first indication there might be an issue with blood clots with one of the vaccines, several countries immediately ceased administering it. Apparently, after further examination, blood clot incidence in vaccinated persons was fewer than controls. In the context of a devestating pandemic, the process seems to be surprisingly transparent and cautiously monitored.
In any case, as millions are vaccinated, the evidence is that the vaccine appears safe and life- saving. Longitudinally, there remains much to be learned, particularly regarding effectiveness against new variants. One caution I think we must take; however, is to maintain CDC covid guidelines, mask, distancing, hand washing, until scientists understand current vaccines' effectiveness against the new variants now appearing.