The recent influx of measles is on the way to make the second largest, the 2019 Australian Measles reports since 1997.
Nevertheless, the overall immunity of Australia remains high, experts say, despite the growing sentiment against vaccination.
On Tuesday, the Victorian health authorities have issued a warning after a person with measles flew from Melbourne to Christchurch on 19 March. It was after a previous incident when a woman took part in the Moto GP while infectious. There have also been outbreaks of measles in New Zealand, Japan and the US in recent months, and more than 200 people were killed in the Philippines this year.
Australia eliminated endemic measles in 2014, which means no other Aussie Aussie has not been infected since due to strong population immunity by vaccination.
But infections still occur due to arrivals from abroad. The number crept up in recent years due to the growing sentiment against vaccination, increasing the number of trips, and other factors, said epidemiologist Gideon Meyerowitz-Katz, in the area of local health Western Sydney.
For the three months there were eight cases of measles in Victoria and 77 nationwide. There were only 74 cases in 2015 to the current trends, 2019 is on track to have 300 infections, the number of wholly exceeded, except in 2014, since 1997.
"But it does not necessarily concern," said Meyerowitz-Katz. "The disease is all coming from abroad, and given our high level of vaccination is probably will not spread. But this is not an ideal trend.
"In many cases, children who are immunocompromised or unvaccinated, for whatever reason. They catch measles from whom they flee to foreign.
"Measles is a & # 39 is one of the most contagious diseases around. The vulnerable population – people who have not had the disease before or who were not infected – they will pass on the disease to 18 other people, on average. For comparison, something like measles or mumps spreads from four to seven people. "
Low immunity level is not all due to the vaccination against the faith.
Measles vaccine requires two doses to be as efficient as possible, and Australian health authorities have warned that many people aged 26 to 52 years received only one.
program measles vaccination began in Australia in the 1960s, but it was not until 1992 that a second dose has become commonplace to & # 39; a reality. Currently, children receive a dose of 12 and 18 months.
Measles vaccine is 93% effective single dose, and 98% with the two doses.
Meyerowitz-Katz, access to health care in general also contributed blotches measles vulnerability.
"The main reason why people do not get vaccinated, apart from dealing with vaccination sentiment, with & # 39 is that the services are not available or free, or maybe six hours away from the city," he said. "Sometimes small or very small towns may have low vaccination rates in relation to the nature of the sparsely populated areas.
"Transient populations also have very low vaccination. People who do not stay in one place long enough to see a doctor, which increases the rate of infection … feeling Anti-vaccine & # 39 is quite common in some places [but nationally] it is not just anti-VAX mood.
"CTS [measles, mumps and rubella] The vaccine is super safe and the Australian government offers it for free … The idea of the vaccines, as you reach the threshold of population immunity, so that the small remainder of the 2% do not get infected. "
Developing countries have much higher rates than measles Australia.
Chief Sanitary Doctor of Victoria, Brett Sutton, said on Thursday: "There is a lot of measles circulating in our region now, including most of the south-east and south Asia. All travelers should be aware of this risk. "