Most of the countries struggling with suboptimal immunization coverage against measles in the Region are middle-income countries. Thirteen additional cases were suspected.
Measles is considered to be highly contagious; the virus can linger in the air for two hours after an infected person is in the room, and people may be contagious without knowing that they are infected, according to the CDC.
In Clark County, 34 of the cases were among children age 10 or younger, while just two were among patients older than 18. About 600 people a day were vaccinated during the last week of January, compared to 200 people during the same period past year. Forty-two patients were not immunized against the virus, while health officials had not verified the immunization status of six patients. That's up from about 200 each week.
However, New York legislation opposes philosophical exemptions for vaccinations, meaning that children must be up-to-date on required vaccinations in order to attend school unless they have a religious or medical exemption. That's up from an average of 60 over the same period in other years. In Madagascar, officials say more than 50,000 people have been infected with measles in recent months and more than 300 people, mostly children, have died as a result. But not almost as much as Clark County. Only 81% of 1 to 5 year olds in the county have received a dose of MMR, according to Clark County, Washington Public Health. That's up from an average of 1,225.
It could be Harris County, Texas, home of Houston, the city with an estimated 87.8% vaccination coverage, according to the 2017 data, marking the lowest percentage of MMR coverage in a metropolitan area in the United States. Almost 500 adults were vaccinated in the first week of February, up from an average of 176 in the years before. The vaccines include MMR, which protects against measles, mumps and rubella, and MMR-V, which also protects against the varicella-zoster virus, which causes chickenpox. Measles is so contagious that if one person has it, 90% of the people close to that person who are not yet immune could become infected. Three more possible exposure sites were also identified in Vancouver, Washington, on Wednesday, leading to the possibility of more cases.
"Any time we start getting a little optimistic, something happens". "But I think we all still know that it's not over yet".