The state health department says that Michigan’s current measles outbreak is its worst since 1991, as 34 cases have been confirmed as of Tuesday, April 2.

The Department of Health and Human Services says it has confirmed four additional measles cases in Oakland County. Of the 34 reported outbreaks in Michigan, 33 are in Oakland County and one in Wayne County, the department said in a news release.

The news doesn’t get any better on a national level as 387 measles cases have been confirmed across 15 states. This represents the second largest outbreak in the U.S. since measles was declared eliminated in 2000, according to the CDC.

Related: CDC says measles outbreak is 2nd largest since 2000

Michigan’s health department points out that from 2001 to 2012, there were only about 60 measles cases on average each year in the entire U.S.

Measles is described as a vaccine-preventable disease that is spread by human contact, and through the air by an infected person. The virus can live up to two hours in the air where the infected person coughed or sneezed, and symptoms usually show up a week or two after exposure.

Key symptoms to look out for include a high fever, cough, runny nose, red and watery eyes, tiny white spots in the mouth and a red rash on the face that spreads to the extremities.

Did you know Measles is a vaccine preventable disease? You can protect yourself and your infant with the MMR vaccine. Learn more about this highly contagious disease and the MMR vaccine from @CDCgov at https://t.co/qQJ8IkH9Bk. pic.twitter.com/DOm2xuY25o — Michigan HHS Dept (@MichiganHHS) March 25, 2019

See below for a list of recently identified potential exposure spots in Southeast Michigan:

April 1:

Yeshivas Darchei Torah School, 21550 West 12 Mile Road, Southfield between 9 a.m. and 2 p.m.

March 29:

Congregation B’Nai Israel: 15400 W. 10 Mile Road, Oak Park between 5:30 and 8:30 p.m.

Bais Haknesses Hagrah, 14561 W. Lincoln Blvd., Oak Park between 7 and 10 a.m.

Beaumont Medical Building, 1st Floor: 3535 W. 13 Mile Road, Royal Oak between 2:30 and 5 p.m.

Yeshivas Darchei Torah School, 21550 West 12 Mile Road, Southfield between 9 a.m. and 7 p.m.

March 28:

Bais Haknesses Hagrah: 14561 W. Lincoln Blvd., Oak Park between 7 and 10 a.m.

Yeshivas Darchei Torah School: 21550 West 12 Mile Road, Southfield between 9 a.m. and 7 p.m.

Congregation B’Nai Israel: 15400 W. 10 Mile Road, Oak Park between 5:30 and 8 p.m.

Related: What you need to know about Michigan’s measles outbreak

“The measles vaccine is highly effective and very safe. A single dose of measles vaccine protects about 95 percent of children, but after two doses, almost 100 percent are immune,” the state health department writes in its release.

“A second vaccine dose is given before the start of kindergarten. For international travel, infants as young as 6 months should be vaccinated against measles. Measles vaccine, or other acceptable documentation of immunity to measles, is recommended for all persons travelling internationally."

Michigan’s measles outbreak dates back to March 13, when the health department reported that the first case came from someone “visiting from Israel following a stay in New York.”

The number of reported measles cases in the U.S. in 2019 is the second highest since 2000. (Courtesy Center for Disease Control)

Related: Number of measles cases in Southeast Michigan now up to 30

The Oakland County Health Division is offering vaccinations at its offices from 8:30 a.m. to 6 p.m on Monday and from 8:30 a.m. to 5 p.m. in Southfield and Pontiac. It will also offer vaccinations from 2:30 p.m. to 4:30 p.m. April 3 and 4 at Young Israel of Oak Park, 15140 W. 10 Mile Road.

Wayne County’s health department offers walk-in vaccinations at its location at 33030 Van Born Road. For more information, call 734-727-7101.

Rite Aid also reports that it is offering the measles vaccinations at its locations upon request. According to a news release from the company, no appointment is necessary. To find a location near you, click here.