Warm weather is here and so are biting insects.  Residents are urged to use insect repellent, take other precautions outdoors.



10/14/2019 MDHHS Press Release: Fifth death due to Eastern Equine Encephalitis announced; new animal case confirmed. Michiganders urged to continue taking precautions until hard frost occurs.

10/8/2019 MDHHS Press Release: State completes planned aerial treatment targeting 14 counties. New EEE cases announced: Michiganders urged to continue taking precautions.

9-27-19 Alert for Van Buren and Cass County Residents:   Due to the large geographic distribution and number of Eastern Equine Encephalitis (EEE) cases in humans and animals, coupled with warm weather projections, the Michigan Department of Health and Human Services (MDHHS) and 12 local health departments have decided to conduct aerial spraying in high risk areas combat further spread of the deadly disease EEE.

Spraying is scheduled take place starting Sunday, Sept. 29 starting at 8 p.m. However, the ability to spray is weather dependent and the schedule may change. Residents are encouraged to visit www.Michigan.gov/EEE  for up-to-date information. Spraying will occur in the following 14 counties: Allegan, Barry, Berrien, Branch, Calhoun, Cass, Jackson, Kalamazoo, Kent, Lapeer, Montcalm, Newaygo, St. Joseph and Van Buren. All of these counties have cases of EEE in people, animals or both. Visit www.Michigan.gov/EEE for more detailed information.  For additional information and to access Frequently Asked Questions click HERE.

See the complete  MDHHS 9-27-19 Press Release HERE.

EEE and Aerial Spraying Frequently Asked Questions

Preguntas frecuentes sobre EEE y pulverización aérea


9-20-19 Update on EEE:  see the MDHHS 9-20-2019 Press Release HERE

9-17-2019 Update on EEE:  Health Officials are asking that the public consider postponing, rescheduling or cancelling outdoor activities occurring at or after dusk, particularly activities that involve children.  This would include such events as late evening sports practices, games or outdoor music practice. MDHHS is making this  recommendation out of abundance of caution to protect the public’s health and applies until the first hard frost of the year.   see the MDHHS 9-17-2019 Press Release HERE

9-10-2019 Update on EEE:  Van Buren Cass District Health Department received notification from the DNR that a deer in Van Buren County has tested positive for EEE (Eastern Equine Encephalitis) the week of August 28, 2019.

9-5-2019 Update on EEE:  A suspect human case of Eastern Equine Encephalitis (EEE) in Cass County is under investigation. There have been two human cases of EEE confirmed in our neighboring counties (Kalamazoo and Berrien Counties). This is a serious illness spread by mosquitoes and requires immediate medical attention.

Be Aware: EEE (Eastern Equine Encephalitis) is one of the most dangerous viruses on the planet, and it’s right here in our own backyard.

Residents can stay healthy by following steps to avoid mosquito bites:   

  • Apply insect repellents that contain the active ingredient DEET, or other U.S. Environmental Protection Agency-approved product to exposed skin or clothing, and always follow the manufacturer’s directions for use.
  • Wear long-sleeved shirts and long pants when outdoors. Apply insect repellent to clothing to help prevent bites.
  • Maintain window and door screening to help keep mosquitoes outside. Empty water from mosquito breeding sites around the home, such as buckets, unused kiddie pools, old tires or similar sites where mosquitoes may lay eggs.
  • Use nets and/or fans over outdoor eating areas.

Signs of EEE include the sudden onset of fever, chills, body and joint aches. Symptoms of California encephalitis virus include fever, headache, nausea, vomiting, fatigue and lethargy.  Residents are encouraged to seek immediate medical attention if experiencing these symptoms and have been exposed to mosquitoes.


For more information about mosquito-borne diseases, visit Michigan.gov/emergingdiseases.

Mosquito Bites: Everyone is at Risk!

8-26-2019 MDHHS Press Release:  The Michigan Department of Health and Human Services is alerting local public health and health care providers to increasing Eastern Equine Encephalitis (EEE) activity in the state. Click HERE for more information.

Two cases of EEE are now suspected in residents from Kalamazoo and Berrien counties.   An additional suspect case is under investigation. Since August 26, MDHHS has been notified of six equine deaths attributable to EEE in Barry, Kalamazoo, and St. Joseph counties and two white-tailed deer deaths in Barry and Cass counties. Horses and deer are sentinels for human risk.

Mosquitoes transmit the EEE virus from its bird reservoir to uninfected humans, horses, deer, and other species. In humans, EEE is a rare cause of encephalitis, however approximately a third of those who develop illness die and many survivors will have mild to severe permanent neurologic damage.

Health care providers should test any human cases of unexplained meningitis or encephalitis occurring in the summer months for exposure to arboviruses. The MDHHS Bureau of Laboratories offers a specialized panel for arboviruses endemic in Michigan, including West Nile Virus (WNV), EEE, St. Louis encephalitis virus (SLE) and California Group viruses. In some instances, MDHHS testing has been more sensitive at detecting arbovirus-associated illnesses than those methods currently available through commercial laboratories.

For additional information on arbovirus testing through MDHHS, contact the Bureau of Laboratories as 517-335-8063, or the Communicable Disease Division at 517-335-8165.

Local public health should alert citizens to increasing arbovirus activity in the state and advise them to take steps to protect themselves from mosquito bites. Anyone living in an area where EEE is circulating can get infected. The risk is highest for people who live in or visit woodland habitats, and people who work outside or participate in outdoor recreational activities, because of greater exposure to potentially infected mosquitoes.

For additional information about arboviruses, visit the Centers for Disease Control and Prevention’s EEE website at http://www.cdc.gov/EasternEquineEncephalitis/, WNV website at http://www.cdc.gov/westnile or the Michigan Emerging Diseases website at www.michigan.gov/emergingdiseases.

8-20-2019 Van Buren Cass District Health Department received notification from the DNR that a deer in Cass County has tested positive for EEE (Eastern Equine Encephalitis) the week of August 19, 2019. Click HERE for more information.

MDHHS Press Release 8-16-2019 – Michigan Residents Reminded to Protect Against Mosquito Bites

On behalf of the Michigan Department of Health and Human Services, the Van Buren/Cass District Health Department is conducting a mosquito trapping program for species surveillance. This program is designed to monitor what level of threat Michigan may face in regards to the Zika Virus and other mosquito transmitted diseases. —PLEASE DO NOT DISTURB—


Resources: EEE Eastern Equine Encephalitis


For the updated information on EEE in Michigan, including case count,

For general health information related to EEE, visit: www.cdc.gov/EEE

MDHHS Bureau of Laboratories Mosquito-Borne and Tick-Borne Disease Testing  guidelines for Providers

For more information about mosquito-borne diseases, visit Michigan.gov/emergingdiseases.


Mosquito Bite Prevention

Not all mosquitoes are the same. Different mosquitoes spread different viruses and bite at different times of the day.

Protect yourself and your family from mosquito bites!

Learn more by clicking on the following links:

Mosquito Bite Prevention

Mosquito Control Tips

Mosquito Control Resources

For Providers: Mosquito & Tick-borne Disease Testing

Warm weather is here and so are biting insects.  The Michigan Department of Health and Human Services Bureau of Laboratories offers comprehensive testing on clinical specimens for a number of mosquito and tick-borne diseases of concern in Michigan.  The attached Information Sheet provides details of the assays available at no cost to Michigan healthcare providers for their patients.  

Click here for the Information Sheet:  Mosquito & Tick -borne Disease Testing

Ticks Season is Here

VBCassDHD along with the Michigan Department of Health and Human Services is encouraging all Michigan Residents to protect themselves from ticks.

Wear Repellent (with DEET)       

Check for Ticks Daily

Shower soon after being outdoors

Call your doctor if you get a fever or rash.

If you do find a tick attached to your skin, there's no need to panic! Click here to learn How to Remove a Tick.

Click here to Learn more about Tick Bite and Tick-Borne Disease Prevention.

More than 300 cases of Lyme disease reported in Michigan in 2017. Click here to Learn more about Ticks and Lyme Disease.

Click here to Learn more about Ticks and Rocky Mountain Spotted Fever (RMSF).