Salmonella outbreaks linked to pet bearded dragons update

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in Follow up Two outbreaks from multiple states salmonella Infections with Vitkin and IIIb 61:z52:z53 serotypes associated with pet bearded dragons, the Centers for Disease Control and Prevention (CDC) recently reported that as of January 20, 2023, a total of 32 people had been infected with the outbreak strains. salmonella Vitkin (12 people) and salmonella IIIb 61: z52:z53 (20 individuals) reported from 20 states. The illnesses started on dates ranging from March 24, 2021, to November 2, 2022.

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Patients ranged in age from less than 1 to 75 years, with a median age of 6 years. Fifteen (47%) are children under the age of 5, with 11 children under the age of one year. Nineteen (59%) patients are female. Of the 24 subjects for whom information was available, 10 (42%) were hospitalized. No deaths have been reported.

The true number of sick people in an outbreak is likely to be much higher than the number reported, and outbreaks may not be limited to states with known diseases. This is because many people recover without medical care and are not tested salmonella. In addition, recent illnesses may not yet be reported as it usually takes 3-4 weeks to determine if a sick person was part of an outbreak.

State and local public health officials interview people about animals they had contact with during the week prior to becoming ill. Of the 25 people interviewed, 16 (64%) reported contact with a pet bearded dragon before it became ill.

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Whole genome sequencing (WGS) showed that bacteria from patient samples are closely related genetically. This means that people in each outbreak are likely to have contracted the disease from the same type of animal.

salmonella Vitkin outbreak

  • Of the 8 people who reported contact with bearded dragons, 4 reported that they purchased their bearded dragon from different pet stores. Investigators are working to determine if there is a common resource for bearded dragons.

salmonella IIIb 61: z52: z53 Breakout

  • Public health officials in Utah and Colorado identified the outbreak from samples collected from the bearded dragon of a sick person and its habitat.
  • Of the eight people who reported contact with bearded dragons, all reported purchasing or contacting bearded dragons from various pet stores. Investigators are working to determine if there is a common resource for bearded dragons.

WGS of bacteria from 30 human samples, seven bearded dragon samples, and 30 environmental samples predicted ciprofloxacin resistance. Analysis of bacteria from a single person’s sample did not predict resistance to any antibiotic. most people with salmonella The disease recovers without antibiotics. However, if antibiotics are needed, this resistance may influence the choice of antibiotic used to treat some people.



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