Washington Gov. Jay Inslee declared a state of emergency over the measles outbreak and OR officials have reported an infection has spread there.
The latest update from the county's health department said that 23 measles cases have been confirmed and two more suspected cases are under investigation, CBS News reported.
Medical experts call it an outbreak boosted by lower-than-normal vaccination rates in an anti-vaccination U.S.
The health department has published a long list of places where infectious people have visited included churches, schools, hospitals, parts of Portland International Airport, an IKEA, and even a Portland Trail Blazers basketball game. Travelers infected overseas can bring the virus into the country and spread it, causing periodic outbreaks.
Measles is rare in North America, and a single case results in a cascade of public health activity to ensure that transmission from the case is minimized.
Officials still are not sure where the Pacific Northwest outbreak began.
Washington Gov. Jay Inslee declared a state of emergency over the measles outbreak Friday. Authorities in neighboring OR and Idaho have issued warnings. The first known patient sought medical care on December 31, but it is unknown if others were sick before that and chose not to seek treatment. Public health officials are focused for now on preventing more exposures.
The Clark County Center for Community Health in Vancouver, Wash., Saturday, Jan. 26, 2019.
Immunization is the best prevention for measles.
"It's one of the most contagious viruses we have". For the most recent years of data available, 87.3 per cent of children turning two had received one dose of measles vaccine, and 88.4 per cent of children turning seven had received two doses, based on data in the provincial immunization registry reported by BC health authorities. "The people who are clearly at risk of infection are those who have never been vaccinated against measles". Of those, just 1 percent had medical exemptions, while a massive 7 percent objected due to "personal or religious reasons".
The virus, spread by coughing or sneezing, can remain in the air for up to two hours in an isolated space.
- Confirm that your child has received 2 doses of the MMR vaccine. Those people stayed home and later got ill, Armstrong said. Complications from the disease, such as swelling of the brain, can be deadly.