Public Health

The mission of the Butte County Public Health Department (BCPHD) is to protect the public through promoting individual, community, and environmental health. 

Measles in Butte County

Content updated as needed. 

measles


As of May 20, 2019, there are 12 confirmed cases in Butte County.


Measles Information Phone Lines

  • If you have general questions about measles, the public may call Butte 211, Monday through Friday from 7:30 am to 7:00 pm by calling 2-1-1, (or by calling the toll free number 1-866-916-3566).
  • If you were present at any of the public exposure locations during the indicated time-frames and believe you may have been exposed, you can call (530) 552- 3929 to speak with Public Health staff. If you were not present at these locations and do not have symptoms of measles, please do not call this number.


Exposure List WEB

View a complete list of measles public exposure locations in Butte County. These location dates and times reflect the period that the infected individuals were in these areas plus a one-hour period after they left the areas, because the virus remains alive in the air for up to one hour.


Measles Frequently Asked Questions:

Q: How do I know if I am fully vaccinated?

Persons can verify their vaccinations status by referring to their yellow vaccination card or a printed vaccination record obtained from their primary care provider. If your provider participates in the California Immunization Registry (CAIR), you can request your records online at: http://cairweb.org/docs/CAIR2AuthorizationToRelease.pdf.

Public Health is only able to verify your vaccination status if you received your vaccination at the public health clinic.


Q: What are the signs and symptoms of measles?

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 or
  • Red, watery eyes (conjunctivitis).

Two or three days after symptoms begin, tiny white spots (Koplik spots) may appear inside the mouth. Not everyone will have Koplik spots. 

Three to five days after symptoms begin, a rash breaks out. The rash 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 spike to more than 104° Fahrenheit.


Q: Have there been Measles cases in the United States and in California in 2019?

Yes, individual cases of measles have been confirmed in California and states throughout the United States. View the current number of measles cases in the U.S.


Q: How is measles transmitted?

Measles is a highly contagious virus that lives in the nose and throat mucus of an infected person. It can spread to others through coughing and sneezing.

The measles virus can live for up to 1 hours in an airspace where the infected person coughed or sneezed. If other people breathe the contaminated air or touch the infected surface, then touch their eyes, noses, or mouths, they can become infected. Measles is so contagious that if one person has it, up to 90% of the people close to that person who are not immune will also become infected. However, measles does not survive more than 1 hours outside the human body.

Infected people can spread measles to others from four days before through four days after the rash appears.

Measles is a disease of humans; measles virus is not spread by any other animal species

Q: I’ve been exposed to someone who has measles. What should I do?

If you know you have been exposed to someone with measles, call Public Health at (530) 552-3929. Additionally, you can call your Healthcare Provider and let them know that you have been exposed to someone who has measles. Your doctor can:

  • Determine if you are immune to measles based on your vaccination record, age, or laboratory evidence, and
  • Make special arrangements to evaluate you, if needed, without putting other patients and medical office staff at risk.

If you are not immune to measles, MMR vaccine or, for persons at high risk for measles complications, a medicine called immune globulin may help reduce your risk of developing measles. Your doctor can help to advise you and monitor you for signs and symptoms of measles.

If you do not get MMR or immune globulin, you should stay away from settings where there are susceptible people (such as schools, hospitals, or childcare facilities) until your doctor says it’s okay to return. This will help ensure that you do not spread measles to others.

Q: I don’t know if I was exposed, but I am concerned that I may have been, what should I do?

If you are feeling well and you don’t have any known exposure to a confirmed case and were not in any place listed at the date and time of possible exposure, you can check your vaccination records by requesting your records from CAIR the immunization registry. If you are unable to verify vaccination through CAIR, you can contact your healthcare provider to help you determine your immune status. There is no way to determine if someone has measles before they have symptoms, so if you are feeling well, and you don’t have a known exposure, there is no need to seek healthcare. Concerned persons without a known exposure can monitor themselves for fever and other signs and symptoms of measles.

Q. Am I protected against measles?

You are considered protected from measles if you have written documentation (records) showing:

  • You received two doses of measles-containing vaccine.
  • A blood test confirmed that you had measles at some point in your life.
  • A blood test confirmed that you are immune to measles.
  • You were born before 1957.

Q: I only received one dose of measles vaccine, am I protected?

One dose of measles vaccine is about 93% effective. Adults with one dose are generally considered protected but, if concerned, persons who only received one dose of measles vaccine can discuss with their healthcare provider whether a second does might be desirable, based upon personal and community risk.

Q: What should I do if I’m unsure whether I’m immune to measles?

If you’re unsure whether you’re immune to measles, you should first try to find your vaccination records. If you do not have written documentation of your vaccination records, contact your Healthcare Provider to obtain your vaccination records. If you are not vaccinated against measles, you should get vaccinated with measles-mumps-rubella (MMR) vaccine.

Another option is to have a doctor test your blood to determine whether you’re immune. But this option is likely to cost more and will take two doctor’s visits. There is no harm in getting another dose of MMR vaccine if you may already be immune to measles (or mumps or rubella).

Q: Where can I get the Measles Vaccine?

  • Your Healthcare Provider.
  • Participating Pharmacies.
  • Some Urgent Care Walk-In Clinics may carry vaccines. Call to confirm
  • Butte County Health Department.

Q: How effective is the measles vaccine?

The measles vaccine is very effective. One dose of measles vaccine is about 93% effective at preventing measles if exposed to the virus. Two doses are about 97% effective.

Q: Could I still get measles if I am fully vaccinated?

Very few people—about three out of 100—who get two doses of measles vaccine will still get measles if exposed to the virus. Experts aren’t sure why. It could be that their immune systems didn’t respond as well as they should have to the vaccine. But the good news is, persons who received 2 doses of measles vaccine (fully vaccinated) who still get measles typically have a milder illness. Fully vaccinated people are less likely to spread the disease to other people, including people who can’t get vaccinated because they are too young or have weakened immune systems.

Q: Do I ever need a booster vaccine?

No. CDC considers people who received two doses of measles vaccine as children according to the U.S. vaccination schedule protected for life, and they do not ever need a booster dose.

Adults need at least one dose of measles vaccine, unless they have evidence of immunity. Adults who are going to be in a setting that poses a high risk for measles transmission should make sure they have had two doses separated by at least 28 days. These adults include students at post-high school education institutions, healthcare personnel, and international travelers. If you’re not sure whether you were vaccinated, talk with your doctor.

Q: If measles is eliminated from the Americas, why do people still get it in the United States?

Every year, unvaccinated travelers (Americans or foreign visitors) get measles while they are in other countries and bring measles into the United States. They can spread measles to other people who are not protected against measles, which sometimes leads to outbreaks. This can occur in communities with unvaccinated people.

Most people in the United States are protected against measles through vaccination. Measles cases in the U.S. are uncommon compared to the number of cases before a vaccine was available. Since 2000, when public health officials declared measles eliminated from the U.S., the annual number of people reported to have measles ranged from a low of 37 people in 2004 to a high of 667 people in 2014.

Measles Resources:





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Public Health Department

202 Mira Loma Drive
Oroville, CA 95965

Report a Health Emergency
24-Hour Line: 530.552.4000

Aaron Quin, Interim Director
Andy Miller, M.D., Health Officer
Public Health Leadership Team

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