Canada has lost its measles elimination status, meaning the highly infectious virus is considered endemic once again in the country, The Pan American Health Organization (PAHO) announced Monday.
The determination was made by a committee of PAHO experts, who spent last week poring over disease data to assess the measles status of countries across the entire region. The fact that Canada has lost its elimination status means that the region of the Americas overall has also lost the status, which it achieved in 2016. Of the 35 countries and territories in the region—a health region designated by the World Health Organization—Canada is currently the only country where measles is considered to be spreading endemically, though other countries, namely the US and Mexico, are headed in the same direction.
Measles is considered eliminated when a country can go 12 months without continuous local spread. Sporadic cases brought in from international travel can continue to occur, potentially causing limited outbreaks. But elimination is lost and endemicity is declared only when transmission is sustained over the course of a year.
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Source: Ars Technica
