Health Alert: Additional measles case confirmed in Collin County

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On March 18, 2019, Collin County Health Care Services identified a second confirmed case of measles. The individual spent a limited amount of time, while contagious, at Kroger on North Preston Road in Prosper on March 15th between 9:00 AM and 10:00 AM.  There were no other public locations reported by the individual.  Collin County Health Care Services (CCHCS) is working to contact persons at private locations at this time. 

Measles is highly contagious and is transmitted primarily from person to person by respiratory droplets and airborne spread. Individuals are contagious from four days before onset of rash to four days after appearance of rash.  Infectious droplets can remain in the air for up to two hours after the individual has left the area.  Symptoms of measles include rash, fever≥101°F, cough, runny nose, or eye redness. Any person suspected of having measles should contact their health care provider and stay at home until four days after rash onset has passed.  Persons suspected to have contact with this individual should monitor themselves for symptoms of measles for 21 days after exposure. 

If you experience or have experienced measles symptoms, or if you have questions, please contact your healthcare provider immediately. Measles is a very contagious airborne disease.  If you develop symptoms and decide you want to be seen at your doctor’s office or at a healthcare facility, such as an emergency department or emergency clinic, PLEASE CALL THEM FIRST and inform them you were possibly exposed to measles so that they may implement necessary precautions to inhibit further spread of the disease.

Physicians and other healthcare providers are requested to consider measles in the initial differential diagnosis of individuals presenting with symptoms compatible with the disease, particularly individuals who have traveled abroad or have come into contact with a known measles case, regardless of vaccination status.  CCHCS requests that healthcare providers, who have a suspected case of measles, take appropriate infection control precautions and immediately report any suspected cases to our office. Our main line is 972-548-4707.  Suspected cases should be triaged quickly and moved from waiting areas to individual rooms with appropriate airborne isolation precautions.  Individuals with suspected measles should be excluded from work or school until cleared by Collin County Health Care Services. 

Collin County Health Care Service’s Chief Epidemiologist, Dr. Jawaid Asghar reminds the community to “talk to your doctor about the benefits of immunization and get vaccinated if you are eligible/able.”

The MMR vaccine has been proven to be safe and effective against measles.  With the recommended two doses, the effectiveness of preventing measles is 97%.  The first dose of the vaccine is recommended for all children 12-15 months with the second dose following between 4-6 years of age.  Detailed guidelines related to measles vaccination are available at


For additional information on measles, please visit the Centers for Disease Control and Prevention website at