AMMINISTRAZIONI IMMOBILIARI E CONDOMINIALI

Vaccines have been protecting people from diseases such as polio, smallpox, and measles for decades, but scientists are now developing vaccines that might work against the viruses that cause HIV, Zika, and most recently COVID-19. Vaccines are an important tool for protecting people from diseases caused by viruses or bacteria. They train the body’s immune system to respond to an invading microbe, even one that it’s never encountered before.