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Salmonella Infections Linked to Live Poultry | May 2014 | Salmonella | CDC

Salmonella Infections Linked to Live Poultry | May 2014 | Salmonella | CDC

Multistate Outbreak of Human Salmonella Infections Linked to Live Poultry in Backyard Flocks

Posted August 8, 2014 10:15 AM ET

At a Glance:

Latest Case Count Map
Latest Epi Curve


Case Count Update

As of August 5, 2014, a total of 300 persons infected with the outbreak strains ofSalmonella Infantis, Salmonella Newport, or Salmonella Hadar have been reported from 42 states and Puerto Rico. Since the last update on June 27, 2014, a total of 49 new ill persons have been reported from Alabama (2), Arizona (1), Colorado (1), Georgia (3), Idaho (2), Iowa (1), Massachusetts (1), Minnesota (1), Missouri (1), Nebraska (3), New Hampshire (1), New Jersey (1), New York (3), North Carolina (1), Ohio (3), Oregon (1), Pennsylvania (4), Puerto Rico (1), South Carolina (1), Tennessee (3), Vermont (1), Virginia (8), Washington (1), and West Virginia (4).
Among persons who reported the date they became ill, illnesses began between February 3, 2014, and July 10, 2014. Ill persons range in age from younger than 1 year to 95 years, and the median age is 28 years. Thirty-seven percent of ill persons are 10 years of age or younger. Fifty-four percent of ill persons are female. Among 206 ill persons with available information, 64 (31%) have been hospitalized. No deaths have been reported.
Illnesses that occurred after July 8, 2014, might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 4 weeks. Please see the Timeline for Reporting Cases of SalmonellaInfection for more details.

Investigation Update

Samples from live poultry and the environments where the poultry live and roam were collected from ill persons’ homes in Vermont and Virginia. Testing of these samples yielded two of the outbreak strains of Salmonella Infantis. These birds were sourced from Mt. Healthy Hatcheries in Ohio.
The National Antimicrobial Resistance Monitoring System (NARMS) is a U.S. public health surveillance system that tracks antibiotic resistance in foodborne and other enteric bacteria found in people, raw meat and poultry, and food-producing animals. NARMS is an interagency partnership among CDC, the U.S. Food and Drug Administration (FDA), U.S. Department of Agriculture (USDA), and state and local health departments.
The NARMS human surveillance program at CDC monitors antibiotic resistance inSalmonella and other bacteria isolated from clinical specimens submitted to NARMS by public health laboratories. CDC's NARMS laboratory conducted antibiotic resistance testing on a total of 11 isolates collected from ill persons infected with the outbreak strains of Salmonella Infantis (8 isolates) or Newport (3 isolates). Of the 11 isolates tested to date, 2 (18%) were resistant to tetracycline and 9 (82%) were pansusceptible (susceptible to all antibiotics tested). Tetracycline is not typically used to treat Salmonella infections. CDC's NARMS laboratory continues to conduct antibiotic resistance testing on additional clinical isolates collected from ill persons infected with the outbreak strains. Results will be reported when they become available.
The NPIP is a voluntary program that was initiated to eliminate certain diseases from poultry flocks that cause significant poultry illness and death. On August 8, 2014,amendmentsExternal Web Site Icon to the National Poultry Improvement PlanExternal Web Site Icon (NPIP) will take effect.  One of these amendments to the NPIP provisions includes the addition of a new certification program for Salmonella, in which mail-order hatcheries have the opportunity to voluntarily participate. Participation in this program will certify their flocks are monitored for Salmonella organisms that may cause illness in humans. The intent of this program is to reduce the incidence of Salmonella in day-old poultry in the hatchery and give the poultry industry a better opportunity to reduce incidence ofSalmonella in their products. In the future, consumers and retailers can choose to purchase their birds from mail-order hatcheries that participate in this additional program.

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