We are currently experiencing a measles epidemic in the United States. I have received many questions regarding immunity and vaccination. Let me answer those questions for you here in my blog space.
Earlier this year measles was introduced into our country by way of visitors to a certain theme park based on a famous rodent. Mind you there are several diseases that can be spread through such animals but we are pretty certain that the incident case was a person visiting from another country where the disease is more prevalent. According to the CDC, from California the outbreak has spread to 17 states and there are over 120 people as of February 6th. It is important to realize that almost everyone that has come down with the infection was not previously vaccinated.
Vaccination occurs through the combined MMR vaccine which includes not just measles but also mumps and rubella. One dose of the vaccine confers immunity to 93% to the individual. A second dose more than 28 days later increases that percentage to 97%. Here are answers to frequent questions that I have been asked:
Should I be revaccinated?
High risk individuals (health care workers, international travelers, those with a low immune system and those that live in close quarters such as dorm rooms) should receive two doses of the vaccine. If you were born before 1948 a booster vaccine is not required.
How do I know if I am immune?
Look for your old vaccination record. If there is documentation of two doses, no further vaccination is required. If not the choice is to proceed with vaccination again or to see your physician to draw lab work to check for immunity. It does not hurt to receive a third dose of vaccine.
Where can I get the vaccine?
For adults, many offices do not carry the vaccine, such as ours. The county health department is a good resource for vaccines. I recommend looking there first.
What are the signs of measles?
Almost all patients have fever, a significant cough, lots of drainage from the eyes and nose and a diffuse rash. If you think you may have measles, please call your doctor. Make sure you alert the staff so that you can wear a mask if you need to come to the office, thus protecting others that you may come in contact with.
