Communicable Diseases

Communicable Diseases: Surveillance and Investigation, protecting residents and limit disease


Measles is one of the most contagious of all infectious diseases; up to 9 out of 10 susceptible persons with close contact to a measles patient will develop measles.

What is Plague?

Plague is an infectious disease that affects rodents, certain other animals, and humans. It is caused by the Yersinia pestisbacteria. These bacteria are found in many areas of the world, including the United States.

Hantavirus Pulmonary Syndrome (HPS)

HPS is a severe, sometimes fatal, respiratory disease in humans caused by infection with a hantavirus.

West Nile Virus

West Nile virus is an arthropod-borne virus (arbovirus) most commonly spread by infected mosquitoes. West Nile virus can cause febrile illness, encephalitis (inflammation of the brain) or meningitis (inflammation of the lining of the brain and spinal cord)

West Nile virus transmission has been documented in Europe and the Middle East, Africa, India, parts of Asia and Australia. It was first detected in North America in 1999, and has since spread across the continental United States and Canada.

Preventing Tick Bites

It is a good idea to take preventive measures against ticks year-round, be extra vigilant in warmer months (April - September) when ticks are most active.

What is Tularemia?  

Tularemia is a potentially serious illness that occurs naturally in the United States. It is caused by the bacterium Francisella tularensis found in animals (especially rodents, rabbits and hares)

What is Campylobacteriosis?

Campylobacteriosis is an infectious disease caused by bacteria of the genus Campylobacter. Most people who become ill with campylobacteriosis get diarrhea, cramping, abdominal pain, and fever within two to five days after exposure to the organism. The diarrhea may be bloody and can be accompanied by nausea and vomiting. The illness typically lasts about one week. Some infected persons do not have any symptoms. In persons with compromised immune systems, Campylobacter occasionally spreads to the bloodstream and causes a serious life-threatening infection.

Zika Virus

This is a virus that is transmitted by mosquitoes which typically cause asymptomatic or mild infection in humans, identified originally in Africa and later in other tropical regions, including South America.


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