To counter the confusion between infection and disease, here's a thread on vaccines in the time of covid: 1) Vaccines are designed to prevent disease (symptoms). They are authorized and used based on their ability to prevent people from getting sick.

2) For some pathogens, including the COVID virus, people can become infected and pass the germ to others before they have symptoms/disease, or without ever having symptoms.  3) Ideally, we want vaccines to prevent disease and the infection itself so it can’t be passed to others.

4) Most vaccines reduce the likelihood of both disease and infection but do a better job at preventing disease.  5) Often people think that if they're vaccinated they won't get sick and they can’t infect other people, but this isn't always the case.

6) The development of new covid vaccines is wonderful news 7) Initial studies show that new COVID vaccines are very good at preventing disease, including severe disease. This means if you're vaccinated, your chances of getting COVID disease are much lower than if you are not.

But like all vaccines they are not a 100% guarantee.  8) Countries are advised by WHO to prioritize health workers and those most vulnerable to serious disease. 9) What isn't known yet is how well the COVID vaccines protect people against infection and passing the virus to others

Based on other pathogens & their vaccines, it is likely that a vaccinated person is not as protected from infection as they are from disease. 10) While studies are ongoing & while vaccines are being rolled out, it is important for people to continue to follow the proven measures