As the worst measles outbreak in New York in decades rages on, health officials have launched an "aggressive, multi-pronged" attack against the disease that has sickened over 200 people in five months.

Since fall in 2018 at least 204 people have necome ill with the highly contagious and potentially deadly disease, which can be prevented by a safe vaccine. Most cases have hit the state’s Orthodox Jewish communities, where some families may find it difficult to access vaccinations in a trend that has weakened herd immunity. Anti-vaccine campaigners have also targeted such communities with misinformation, Vox reported. Outbreaks have occured as travelers returning home from countries including Israel—which is experiencing its own measles outbreak—bring the disease to the U.S. and encounter unimmunized individuals. 

Jill Montag, spokesperson for the New York State Department of Health, told USA Todayon Monday that thousands of children without the appropriate shots have been excluded from 29 schools and daycare centers where the virus may be present.

"We will continue our aggressive, multi-pronged response, until it is clear the outbreak has been contained," she said. 

In the past week, New York City health officials confirmed two new measles cases in the Williamsburg neighborhood, and one in the Borough Park area of Brooklyn. The incidences bringing the total number of members of the city’s Orthodox Jewish community diagnosed with measles between October 2018 and February 6, 2019 to 67. 

Meanwhile, in Rockland County, some 130 cases were diagnosed between September 2018 and February 6. Officials said an international traveler arrived in the county to the west of the Hudson River, with additional cases exposing more people to the virus. Of the total measles patients, 82 percent were unvaccinated, while three percent only had one shot. To work correctly, the MMR jab must be administered twice.  

And Monroe County, to the west of New York state, has been hit by seven cases of measles this year: four cases confirmed in a lab, and three fitting the clinical profile of the dangerous condition. 

That outbreak has been linked to an unvaccinated child returning from Ukraine—where the disease has not been eliminated—who passed the disease on two unimmunized children, Spectrum Local News reported citing health officials. Other outbreaks in New York last year affected areas including Orange County, but no new cases have been reported in 2019. 

Ryan Horey, Monroe County health department public information officer, told WXXI in early February: “The important through-line that connects all of these—all seven measles cases in Monroe County—is that all seven of them are unvaccinated.”

The outbreak highlighted “just how important it is it is for everyone in the community to get vaccinated,” he said.

“That’s why herd immunity is so important,” Horey continued. “You don’t just get vaccinated for yourself. You get it so you can stop the disease from spreading and infecting other people who aren’t eligible for the vaccine.” Read more at MSN