Meat+Poultry - July 2020 - 82

FOOD SAFETY

A Salmonella
solution?
Vaccinating chickens against the
pathogen has gained a higher profile
BY E R I C A S H A FFE R | e s h a f f e r @ s o s l a n d.c o m

T

82

MEAT+ POULTRY | 07.20 | www.meatpoultry.com

found that the incidence of infections caused
by foodborne pathogens was unchanged for
Salmonella along with Listeria and Shigella
compared with the previous three years.
Salmonella Enteritidis has been the
most-common cause of Salmonella infections
at FoodNet sites since 2007, CDC said, and
incidence has not decreased. Chicken was
recognized as an important source of infections
during the late 1990s while eggs were the major
source of Enteritidis infections in the 1980s.
Given that incidence of Salmonella
infections hasn't declined, what role do
vaccinations against the pathogens play in
protecting consumers from getting sick?
Bill Potter, PhD, associate advisor, Poultry
Food Safety, at Elanco, said vaccines have
been identified as a key intervention in a
multi-hurdle strategy employed by vertically
integrated broiler processors. These hurdles
work to keep levels of Salmonella sufficiently
low throughout the process so that processors
can reduce Salmonella loads to government
required standards using facility interventions.

ksubogdanova - stock.adobe.com

More stringent federal
requirements for lowering
Salmonella loads in poultry
have led to increased
use of vaccinations in
the poultry industry.

he Centers for Disease Control and
Prevention (CDC), in a Morbidity and
Mortality Weekly Report (MMWR),
suggested that vaccinating chickens raised
for food could help reduce the incidence of
Salmonella infections in people. CDC research
found that the incidence of some Salmonella
serotypes has declined. Typhimurium moved
from the most common serotype from 1996 to
1998 to the third most common in 2019, and
Salmonella Heidelberg is no longer in the top 20.
"These decreases might be partly related
to the widespread practice of vaccinating
chickens against Typhimurium, which shares
antigens with Heidelberg," CDC said. "This
observation, combined with a marked decline
in Enteritidis infections in the United Kingdom
after implementation of widespread chicken
vaccination and improved farm hygiene,
suggests that targeting other serotypes through
poultry vaccination could be one way to
reduce human illnesses in the United States."
A review of Foodborne Diseases Active
Surveillance Network (FoodNet) data for 2019


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Meat+Poultry - July 2020

Table of Contents for the Digital Edition of Meat+Poultry - July 2020

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