Moldova, Montenegro and Colombia also reported measles cases in 2018 despite having none the year prior, but none came close to Brazil's increase as Moldova had the second highest increase of these countries with 312 cases.
Ukraine saw the world's largest increase in measles cases in 2018, followed by the Philippines and Brazil, the United Nations International Children's Emergency Fund (UNICEF) said in a statement on Friday.
This "alarming" global surge in measles cases poses a "growing" threat to children, UNICEF says.
The health authorities blamed the low level of immunization for the outbreak of the disease.
Now there are no cases of measles in the state, but Health Promotion Director Cindy Farr says there is a possibility measles could reach Montana. "Just as the serious outbreaks we are seeing today took hold in 2018, lack of action today will have disastrous consequences for children tomorrow".
While the United States has not seen as big a jump in measles cases as some other countries in the report, outbreaks have been coming more common in recent years.
By comparison, there were just 120 cases in 2017 and 86 cases in 2016.
Officials are working to raise awareness and to promote vaccinations as the number of measles cases continues to rise around the world.
Most people born before 1957 are thought to have been infected naturally with the virus through measles outbreaks. Yemen, Venezuela, Serbia, Madagascar, Sudan, Thailand and France saw the next biggest increases.
Vaccines have eradicated infectious diseases like smallpox, and reduced others such as polio and measles.
The recent surge of cases is attributable to unvaccinated persons who travel overseas, contracting the disease elsewhere then bringing it back to vulnerable communities in the U.S. It spreads through the air when a person coughs or sneezes. "Parents and guardians must set their biases aside and have their children vaccinated against measles for their protection", Mayor Abby said. "They have been getting about one to two new cases a day over the last couple of weeks".
Measles is a potentially deadly respiratory illness caused by the measles virus, and symptoms typically include high fever, cough, runny nose, watery eyes and a rash of flat red spots. "We also recommend people have chicken pox, hep A, HPV vaccines, and meningitis B vaccines", said Fredell. If we don't do something about it now, "it could get considerably worse".
In the late 1990s, one study linked MMR vaccine to autism but that study was found to be a fraud, and Fauci said later research found no risk of autism from the vaccine.
MHD Chief Dr. Bernard Sese said children six to eight months old are being given the measles rubella vaccine, while children nine months old and up are given the Mumps Measles Rubella (MMR) vaccine.
Measles can lead to severe complications, such as pneumonia, encephalitis - swelling of the brain - and death.
Daskalakis heads disease control for the city's Health Department and is warning all residents who may be at risk to get vaccinated immediately. Full vaccination is 97 percent effective at preventing measles.