Communicable Diseases

What it is

Communicable diseases are illnesses that can spread from person to person, through animals, through contaminated food or water, or through the environment. Outbreaks can range from seasonal illness to larger public health emergencies.

Why it matters in Tennessee

Communicable disease outbreaks can affect schools, workplaces, health care systems, long-term care facilities, public events, and daily life. Preparedness helps reduce the spread of illness and protects people at higher risk.

What to do before

• Stay up to date on recommended health guidance.
• Keep basic health supplies at home, such as soap, hand sanitizer, tissues, and fever-reducing medicine.
• Make a plan for staying home if you or someone in your household becomes sick.
• Know how to contact your health care provider.
• Keep copies of important medical information and prescriptions.

What to do during

• Follow guidance from public health officials.
• Stay home when you are sick, when possible.
• Wash your hands often with soap and water.
• Cover coughs and sneezes.
• Clean frequently touched surfaces.

What to do after

• Continue following public health guidance as conditions change.
• Restock supplies used during the illness or outbreak.
• Check on family, neighbors, and people who may need help.
• Review workplace, school, or household plans.
• Seek medical care if symptoms worsen or if instructed by a health professional.

Stay informed

Follow information from trusted public health officials, your health care provider, and local emergency management officials.