Public health issues throughout the Philadelphia region are handled mainly at the county level, with backup as needed from state and federal agencies.
The flu season will be here soon. Many health-care providers have flu shots and nasal spray.
Pharmacies and supermarkets often provide flu vaccine; search for local sites at Flu.gov.
Many of the following counties also offer free flu shots or flu mist to residents free of charge:
Delaware County Department of Intercommmunity Health Coordination
Refers elsewhere for services.
New Jersey counties
Some health issues fall under the Department of Agriculture and the Environmental Protection Agency. But most are covered by agencies, including the following, that are part of the Department of Health & Human Services:
HealthReform.gov (site may be slow)