News Scan for Sep 23, 2019

US foodborne disease trends
More measles in US, Brazil

CDC review: Norovirus most common foodborne pathogen in 2017

The Centers for Disease Control and Prevention (CDC) late last week released a summary of foodborne illnesses in 2017 based on an annual analysis of data from the Foodborne Disease Outbreak Surveillance System, and norovirus was the most common pathogen reported, responsible for 46% of illnesses. Salmonella and Shiga toxin–producing Escherichia coli were also linked to a substantial number of outbreaks.  

In 2017, the CDC tracked 841 foodborne outbreaks, which included 14,481 illnesses, 827 hospitalizations, 20 deaths, and 14 food product recalls. A single etiologic agent was confirmed in 395 outbreaks (47%), which are defined as two or more related cases.

Tainted seafood and poultry were tied with causing the most outbreaks, with mollusks (41 outbreaks), fish (37), and chicken (23) the specific food items most often implicated. The most outbreak-associated illnesses were from turkey (609 illnesses), fruits (521), and chicken (487), the CDC said.

California had the most outbreaks (107), followed by Ohio (69), and Washington state (67). 

As in past years, restaurants with sit-down dining were the most commonly reported locations for food preparation associated with outbreaks (366).
Sep 20 CDC report


New cases lift US measles total to 1,241, as Brazil faces growing outbreak

With two more cases confirmed in the last week, the United States has seen 1,241 measles cases in 2019—the most since 1992 and since measles was declared eliminated in 2000. The 1,241 total, however, remains the same as the previous week's, because two previously recorded cases were determined to not have been measles, the CDC said.

"As of September 19, 2019, 131 of the people who got measles this year were hospitalized, and 65 reported having complications, including pneumonia and encephalitis," the CDC said. No deaths have been recorded.

Thirty-one states have confirmed measles cases, and more than 75% of this year's cases have been recorded in New York State. Only the outbreak in New York's Rockland County is considered ongoing, as health officials this month declared outbreaks in New York City, El Paso, and Wyoming County, New York to be over.

In other measles news, Xinhua, Chin's state-run news agency, reported that Brazil has doubled the number of measles, mumps, and rubella vaccine doses ordered this year in an effort to stop a large ongoing outbreak. Xinhua said the vaccine order grew from 30.6 million doses in 2018 to 60.2 million in 2019.

Brazil's ministry of health will launch a vaccination campaign targeted at 39 million unvaccinated Brazilians. So far this year, Brazil has recorded 4,476, measles cases, with more than 3,000 of those confirmed in the past 3 months.
Sep 23 CDC update
Sep 21 Xinhua story

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