A number of questions have come into local health departments and municipalities about the COVID-19 vaccine. Danbury Health Department officials say one prominent question is if someone could catch COVID from the vaccine. The answer is no. The two vaccines approved for use in the United States do not use a live virus. The shots from Pfizer and Moderna have been developed using mRNA technology. The technology has been used and studied for decades. Scientists take part virus’s code, which tells cells what to build, and coat them in a lipid so they can enter the body’s cell. The immune system then produces antibodies and activates T-cells to destroy the spike proteins created by the messenger-RNA.