Diseases of Public Health Significance

Hepatitis B (Hep B) is an infection of the liver, caused by the hepatitis B virus (HBV).

Hepatitis A (Hep A) is an infection of the liver, caused by the hepatitis A virus.

L’hépatite A est une infection du foie causée par un virus. La maladie est généralement mineure chez les enfants, mais peut être plus grave chez les adultes. Certaines personnes risquent davantage de contracter une infection par l’hépatite A

Gonorrhea is a sexually transmitted infection (STI) caused by bacteria (germs), called Neisseria gonorrhoeae. It is one of the most common bacterial STIs.

Cryptosporidiosis (crypto) is an infection caused by a group of parasites (germs), called cryptosporidium. Most infections occur in a person’s stomach and intestines (gastrointestinal tract). Infections can occur in other parts of the body, such as the lungs. These germs can infect humans, cattle, and other animals.

Chlamydia is a sexually transmitted infection (STI) caused by bacteria (germs), called chlamydia trachomatis. It is one of the most common bacterial STIs.

Chickenpox is a common and preventable infection caused by the varicella-zoster virus.

Campylobacter enteritis is an infection caused by a group of bacteria, called Campylobacter. These germs live mostly in the intestines of animals, including poultry, cattle, rodents, and household pets.

Amebiasis is an infection caused by a parasite, called Entamoeba histolytica.  It lives in the feces (poop) of a person.  Most infections occur in a person’s stomach and intestines (gastrointestinal tract).  In some people, the disease may occur in the liver, lungs, skin, and other parts of the body.