Recent U.S. food-linked listeriosis outbreaks shorter

Recent U.S. food-linked listeriosis outbreaks shorter
Compared with earlier outbreaks, more recent food-associated listeriosis outbreaks in the United States have been shorter and affected fewer people, according to research published online Dec. 12 in Emerging Infectious Diseases.

(HealthDay)—Compared with earlier outbreaks, more recent food-associated listeriosis outbreaks in the United States have been shorter and affected fewer people, according to research published online Dec. 12 in Emerging Infectious Diseases.

Emily J. Cartwright, M.D., of the U.S. in Atlanta, and colleagues provide a summary of listeriosis outbreaks reported to the Foodborne Disease Outbreak of the during 1998 to 2008, including data from PulseNet, a molecular subtyping network, and the Listeria Initiative (enhanced surveillance for investigation of outbreaks).

During the study period, the researchers identified reports of 24 confirmed listeriosis cases, resulting in 359 illnesses, 215 hospitalizations, and 38 deaths. Outbreaks occurring earlier in the study period (13 outbreaks) tended to be larger and longer than those occurring later (median 11 versus five cases; 122 versus 36 days). Earlier cases were associated with ready-to-eat meats (five with deli meats and three with frankfurters). In contrast, outbreaks occurring later in the study period were associated with novel vehicles, including sprouts, taco/nacho salad, and tuna salad. Serotype 4b was found in the largest number of outbreaks and in seven cases linked with outbreaks.

"Listeriosis outbreak investigations are crucial to prevent additional illness, hospitalization, and death," the authors write. "The changes we observed in characteristics of listeriosis outbreaks during 1998 to 2008 illustrate the contributions of PulseNet and the Listeria Initiative for outbreak detection and investigation and subsequent effects of industry and regulatory efforts to prevent similar contamination from reoccurring."

More information: Abstract
Full Text (subscription or payment may be required)

add to favorites email to friend print save as pdf

Related Stories

US death toll from cantaloupe rises to 23

Oct 12, 2011

An outbreak of listeria in farm-grown cantaloupes has killed 23 people and sickened 116 more in the United States since late July, health authorities said Wednesday.

Recommended for you

WHO: Mali case may have infected many people

2 hours ago

The World Health Organization says a toddler who brought Ebola to Mali was bleeding from her nose during her journey on public transport and may have infected many people.

New York 'fully prepared' to handle Ebola case: mayor

3 hours ago

New York's mayor said America's largest city was fully equipped to handle Ebola as authorities sought to calm fears Friday about the virus spreading, after a doctor tested positive for the disease.

Two US nurses are declared cured of Ebola

3 hours ago

Two American nurses were declared cured of Ebola on Friday, and one was healthy enough to leave hospital and make plans to meet President Barack Obama.

User comments