States that have reported cases to CDC include NY, where there have been outbreaks in Brooklyn and Rockland County, New Jersey, Connecticut and MA. A state judge later blocked the order. Several measles outbreaks in NY state are contributing to this year's unusually high measles rates.
Measles cases rose 300 percent worldwide through the first three months of 2019 compared to the same period past year, the United Nations said Monday, as concern grows over the impact of anti-vaccination stigma.
"Over recent months, spikes in case numbers have also occurred in countries with high overall vaccination coverage, including the United States of America as well as Israel, Thailand, and Tunisia, as the disease has spread fast among clusters of unvaccinated people", the World Health Organization statement said.
"Most measles outbreaks in the USA stop sooner than this", she said.
Measles was declared eliminated in the U.S.in 2000 thanks to the MMR (measles, mumps, rubella) vaccine. The cases were found in 20 states spanning the country.
"By the time you finish reading this, we estimate that at least 40 people - a lot of them children - will be infected by this fast-moving, life-threatening disease", Henrietta Fore, executive director of UNICEF and Dr. Tedros Adhanom Ghebreyesus, director general of the World Health Organization, wrote in an opinion piece Monday on CNN.
The city hasn't revealed all the information surrounding the current outbreak, including the number of cases, the suit claims.
The mistaken belief can be traced back to 1998, when a doctor in the United Kingdom published a now discredited study claiming the MMR vaccine was linked to autism.
Claims about health risks from vaccines are "based purely on fabrication", he continued. "That's been proven. There is no association whatsoever between the measles vaccine and autism". And once the disease lands stateside, it has a better chance of gaining a foothold because vaccination rates have dropped in some places below 93 to 95 percent, the threshold required to protect the entire community.
Most of the Brooklyn cases are among children.
About 1 out of every 1,000 children who gets measles will develop encephalitis or swelling of the brain, according to the CDC.
The measles virus is highly contagious and can lead to deadly complications, particularly in children.
Additionally, 1 or 2 out of 1,000 children who get measles will die from it.
Measles can also cause pregnant women to give birth prematurely or have a low-birth-weight baby.