Disease Surveillance

Preventing infectious diseases through education, surveillance with case and outbreak investigations on mandatory reportable diseases, referrals to vaccines for vaccine preventable diseases and preventing human rabies.

Disease surveillance is responsible for conducting case investigations and providing prevention education on over 80 reportable disease conditions in the State of Maryland as well as investigating animal bites/scratches and bat exposures in humans.

Maryland statute, specifically the Annotated Code of Maryland, Health-General Article §§ 18- 102 (b), 18-103 (a), 18-201, 18- 202, and 18-205 and Maryland regulation, specifically Code of Maryland Regulations (COMAR) 10.06.01 Communicable Disease, require that health care providers, hospitals and certain others, submit a report in writing of diagnosed or suspected cases of specified diseases to the Health Officer (designee) in the county where the provider cares for that person.

Maryland statute Health-General §§18-201 and 18-202 and Maryland regulations (COMAR) 10.18.03, HIV and AIDS Investigations and Case Reporting, require that physicians, hospitals and others submit a report in writing of diagnosed cases of HIV and AIDS to the Health Officer (designee) in the county where the provider cares for that person.

The Disease Surveillance Office is open Monday - Friday. 7:30a.m. to 4:00 p.m.
Phone: 410-222-7254 
Fax: 410-222-4004

To Report Animal Bites/Scratches and Bat Exposures

After Hours and Weekends/Holidays Reporting

When to use the After Hours Number:

  • Outbreaks of known or unknown etiology that may be an immediate danger to public health.
  • Phone reportable within 24hrs - prefer during business hours
  • Conditions that require an immediate phone call (using after hours number if needed)
    • Anthrax
    • Botulism - if bioterrorism is suspected
    • Diphtheria
    • Ebola
    • Measles
    • Meningococcal, invasive disease (Neisseria meningitidis)
    • MERS-CoV
    • Plague
    • Poliomyelitis
    • Rabies (human)
    • Ricin toxin poisoning
    • Rubella
    • Smallpox
    • Viral hemorrhagic fevers, all types

All others - Please report next business day.