a brief history of the lenape-delaware Algonquian, the most populous and widely distributed of the North American linguistic stocks, originally comprised several hundred tribes who spoke nearly 50 related languages.
Text Size: A+ A- A â¢ Text Only. HIV, other sexually transmitted diseases (STDs) such as gonorrhea and chlamydia, and viral hepatitis are often transmitted in the same ways. These diseases are commonly spread by having unprotected sex or injecting drugs with equipment used by someone else. Learn more about these diseases, services for community members and resources for providers.
Hepatitis A is a contagious liver infection caused by the hepatitis A virus (HAV). In the USA, hepatitis A infections have declined by 90% since the hepatitis A vaccine first became available in 1995. Still, there are cases of hepatitis A reported to the San Francisco Department of Public Health every year among San Francisco residents.