On December 18, a San Diego emergency room nurse was given a shot of the Covid-19 vaccine. A week later, he tested positive for the virus, CNN affiliate KGTV reported.
Stories like this will become more common as millions of Americans are administered the Pfizer-BioNTech and Moderna vaccines over the coming months. Over time, many who are vaccinated will still get infected with the novel coronavirus.
During trials, the vaccines were shown to be about 95% effective — which means some vaccinated people were still infected.
Read the full story at CNN | Health.
