COVID-19 Regarding the safety of the vaccines, I'm a analyst, not a doctor, but I happen to work with researchers who have been involved with vaccine research this past year. To a person, they endorse the current vaccines for the average adult. As one said to me, the chance of a negative reaction to the vaccine is a lot smaller than what might happen if you catch the virus. And because of the importance of the research they do, many have already received a shot (or will soon).