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Health Services – Infectious (Communicable) Disease

Deer tickThe Communicable Disease Program provides education and tracks infectious diseases in the county to help keep residents from getting sick.

Some diseases we track include Lyme Disease, Pertussis (whooping cough), respiratory disease, and gastrointestinal (GI) diseases. We work with our Environmental Health Bureau to prevent and treat foodborne illness and rabies in people.

We also support the community with services and information related to emerging communicable diseases such as:


Monkeypox – Monkeypox is a rare disease spread through contact with an infected person or animal’s respiratory droplets and body fluids as well as materials like bedding. Symptoms of monkeypox include fever, headache, fatigue, and swollen lymph nodes, and generally appear 7-14 days after the initial infection. One to three days after the initial symptoms, a person will develop a rash and lesions on the face or body.

Monkeypox is endemic to several Central and West African countries. Since May 14, 2022, clusters of monkeypox cases have been reported in several countries that don’t normally have monkeypox.  Although previous cases outside of Africa have been associated with travel from Nigeria, most of the recent cases do not have direct travel-associated exposure risks.

To prevent monkeypox:

  • Avoid contact with people who may be sick, as well as their bedding, clothing, and other materials
  • Wear a face mask around others
  • Wash your hands often with soap and water, or using hand sanitizer

If you think you have been exposed to monkeypox or may have monkeypox, talk with your healthcare provider as soon as possible. Most people recover from monkeypox without specific treatment, but antivirals may be available if needed. Smallpox vaccination may be used for prevention in some close contacts and healthcare workers.

For more information on monkeypox in Maryland, visit the Maryland Department of Health’s Human Monkeypox page.

6/16/22 – Presumed Human Monkeypox virus infection identified in Maryland resident

Hepatitis of unknown cause in children – The CDC is currently working with health departments across the country to identify children with hepatitis (liver infection) of unknown cause. Some children have become very ill. Investigators are examining a possible relationship to adenovirus type 41 infection. Parents should be aware of the symptoms of liver infection in children, including:

  • fever
  • fatigue
  • loss of appetite
  • nausea
  • vomiting
  • abdominal pain
  • dark urine
  • light-colored stools (poop)
  • joint pain
  • jaundice (yellowing of the skin)

Parents should talk with their child’s healthcare provider about any concerns. They can also help prevent illness by keeping children up to date on all their vaccinations and helping them remember to wash hands often and avoid touching their eyes, nose, and mouth.

Vaccines for Adults

Vaccines for Children

Our Communicable Disease Program nurses also screen people who are at risk of having TB and provide treatment for people with active TB disease or TB infection.

How to Obtain Services

Who can get services?

Carroll County residents and visitors


How do I get services?

Call 410-876-4771 for more information.


8:00 a.m.–5:00 p.m.