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Answers to common questions about COVID-19 vaccination.

Information and guidance on preventing COVID-19 infection.

Information and guidance on similarities and differences of COVID-19 and influenza infections.

COVID-19, discovered in December 2019, quickly became a global pandemic. Doctors and researchers continue to learn more about it every day. Safe and effective vaccines are now available, offering hope for an end to the pandemic. Until everyone is vaccinated, however, the virus continues to spread.

An intestinal infection caused by the Shigella bacteria

An infection caused by the reactivation of varicella-zoster (chickenpox) virus within the body of someone who previously had chickenpox or (rarely) someone who had received the chickenpox vaccine in the past

An infection of one or more parts of the urinary system. The urinary system includes the kidneys, the tubes that join the kidneys to the bladder (ureters), the bladder, and the tube that leads from the bladder to the outside (the urethra).

Small, white, threadlike worms (0.25″–0.5″ long) that live in the large intestine