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Measles
Measles is a highly contagious respiratory disease (in the lungs and breathing tubes) caused by a virus that is spread by direct contact with nasal or throat secretions of infected people (when a person infected with the measles virus breathes, coughs, or sneezes). Measles is one of the most contagious viruses on earth; one measles infected person can give the virus to 18 others. In fact, 90% of unvaccinated people exposed to the virus become infected. You can catch measles just by being in a room where a person with measles has been, up to 2 hours after that person is gone. And you can catch measles from an infected person even before they have a measles rash.
A safe and effective measles vaccine that can prevent suffering and death has been available for more than 50 years.
High community vaccination rates help protect people who cannot get vaccinated because they are too young or have specific health conditions.
Two doses of the MMR vaccine are recommended for maximum protection. One dose of the MMR vaccines can offer 93% protection from the measles. Two doses of the MMR vaccine can offer 97% protection from the measles. Typically, the first dose of MMR vaccine is given at 12-15 months of age and the second dose is given at four to six years of age (age of school entry), although individuals may also be vaccinated later in life.
Symptoms usually appear 10-12 days after exposure but may appear as early as 7 days and as late as 21 days after exposure. Measles typically begins with:
- High fever,
- cough,
- runny nose (coryza), and
- red, watery eyes (conjunctivitis).
Then:
- Two or three days after symptoms begin, tiny white spots (Koplik spots) may appear inside the mouth.
- Three to five days after symptoms begin, a rash breaks out. It usually begins as flat red spots that appear on the face at the hairline and spread downward to the neck, trunk, arms, legs, and feet. Small, raised bumps may also appear on top of the flat red spots. The spots may become joined together as they spread from the head to the rest of the body. When the rash appears, a person's fever may go up to more than 104° Fahrenheit.
- After a few days, the fever subsides and the rash fades.
People are considered infectious from four days before to four days after the appearance of the rash. Learn more from the Centers for Disease Control and Prevention (CDC).
Measles can be dangerous, especially for babies and young children. Others who are at high risk for complications if they get the measles include pregnant women who are not immune, as well as those who are immune-compromised or immunosuppressed (when your body can't fight disease).
Common Complications
Common Complications Include Ear Infections and Diarrhea
- Ear infections occur in about one out of every 10 children with measles and can result in permanent hearing loss.
- Diarrhea is reported in less than one out of 10 people with measles.
Severe Complications
Some people may suffer from severe complications, such as pneumonia (infection of the lungs) and encephalitis (swelling of the brain). They may need to be hospitalized and could die. Here are some facts about complications in children and pregnant women:
- As many as one out of every 20 children with measles gets pneumonia, the most common cause of death from measles in young children.
- About one child out of every 1,000 who get measles will develop encephalitis (swelling of the brain) that can lead to convulsions and can leave the child deaf or with intellectual disability.
- For every 1,000 children who get measles, one or two will die from it.
- Measles may cause pregnant woman to give birth prematurely or have a low-birth-weight baby.
Rare Long-term Complications
Subacute sclerosing panencephalitis (SSPE) is a very rare, but fatal disease of the central nervous system that results from a measles virus infection acquired earlier in life. SSPE generally develops 7 to 10 years after a person has measles, even though the person seems to have fully recovered from the illness. Learn more from the Center for Disease Control and Prevention (CDC).
All health care providers should immediately report all cases of suspect measles to the Rockland County Department of Health Communicable Disease Program staff by calling (845) 364-2997 during normal business hours, or (845) 364-8600 after hours/weekends. Health Care Providers can also call this number for additional information.
At the end of September 2018, an international traveler arrived in Rockland County with a suspected case of the measles. Per protocol, the Rockland County Department of Health (RCDOH) was notified and immediately activated its Communicable Disease Team to investigate.
The outbreak was declared over on September 25, 2019.
As of September 25, 2019, there were 312* confirmed reported cases of measles in Rockland County.
*On Monday, August 26, 2019, 16 historical cases of measles were added to the current total. These cases occurred between early February 2019 and mid-May 2019.
Age groups for the confirmed measles cases in Rockland County as of August 26, 2019:
- Less than 1 year old: 11.5%
- 1-3 years: 26.3%
- 4-6 years: 14.7%
- 7-18 years: 27.9%
- 19+ years: 19.6%
Vaccination rates for confirmed measles cases in Rockland County as of August 26, 2019:
- 79.5% have had 0 MMRs
- 5.8% have had 1 MMR
- 3.2% have had 2 MMRs
- 11.5% have unknown status
Resources
- New York State Department of Health Measles webpage (updated 2.2024)
- CDC Vaccine for Measles
- Top 4 Things Parents Need to Know about Measles CDC
- Top 10 Reasons to Protect Your Child by Vaccinating
- Measles - What is it? This is a video that discusses measles. What is it? How does it spread? How can we prevent it? published on February 21, 2015
- CDC Travel and Measles
- Top Four Things Parents Need to Know about Measles
- Las 4 cosas principales que deben saber los padres sobre el sarampión
- New York State Department of Health Measles Webpage
- Evaluating Reliable Vaccine Resources
- New York State Department of Health Measles Poster - English
- New York State Department of Health Measles Poster - Spanish
- New York State Department of Health Measles Poster - Creole
- New York State Department of Health Measles Poster - Yiddish
- New York State Department of Health and Rockland County Department of Health Measles Poster - English
- New York State Department of Health and Rockland County Department of Health Measles Poster - Spanish
- New York State Department of Health and Rockland County Department of Health Measles Poster - Creole
- CDC (Centers for Disease Control and Prevention) Measles Web Page
- Measles Can Be Serious Infographic from the CDC
- 11.6.18 Journal News article, Rockland measles: Answers to Frequently Asked Questions About Historic Outbreak
- 2.5.15 Los Angeles Times Article, History of Measles: A Scourge for Centuries
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