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Red Book Online Outbreaks & Emerging Infections

March 17, 2025

Information and resource links for current infectious disease outbreaks. This section focuses on outbreaks that affect the pediatric population and that have been identified in multiple U.S. states; other outbreak types may be covered occasionally as situations warrant.

Outbreaks are reviewed weekly and updated when new information is available from the CDC.

Infection Prevention and Control Strategies and Resources to Prepare for and Respond to Outbreaks

Announced 03/18/25 

Salmonella Outbreak Linked to Geckos 

CDC and public health officials in several states are investigating a multistate outbreak of Salmonella infections linked to pet geckos.


CDC is currently investigating a multistate Listeria monocytogenes outbreak linked to recalled supplemental shakes manufactured by Prairie Farms.


Updated 3/17/25 | Announced January 2019

Measles

Pediatricians are advised to monitor for outbreaks of measles in the US.


Updated 2/28/25 | Announced April 2024

Highly Pathogenic Avian Influenza A(H5N1)

Highly Pathogenic Avian Influenza (HPAI) A(H5N1) is widespread in wild birds worldwide and is causing outbreaks in poultry and US dairy cows with several cases in US dairy workers.


The FDA and CDC, in collaboration with state, local, and international partners, are investigating illnesses in a multistate outbreak of Salmonella Enteritidis infections linked to Sweet Cream-brand mini pastries manufactured in Italy and exported into the United States by Importations Piu Che Dolci Inc. of Quebec, Canada.


Updated 12/10/24 | Announced 11/25/24 

Listeria Outbreak Linked to Ready-to-Eat Meat and Poultry Products 

As of March 13, 2025, this outbreak is over.

CDC is currently investigating a multistate Listeria monocytogenes outbreak linked to recalled Yu Shang Food ready-to-eat meat and poultry products.


Updated 11/18/24 | Announced May 2022

Mpox 

Pediatricians should be alert for the signs and symptoms of mpox in children and adolescents traveling from the Democratic Republic of Congo or a country where mpox is occurring in the last 21 days, or children who have contact with persons who have recently been in a country where mpox transmission is occurring. It was reported on November 16, 2024, that the first known case of clade I mpox in the US was diagnosed in California.


Updated 3/17/25 | Announced August 2024

Pediatricians are advised to monitor for Oropouche virus disease, which has been reported among US travelers returning from Cuba.


Updated 3/17/25 | Announced August 2014

Pediatricians are advised to monitor an increase in cases of acute flaccid myelitis since 2014 because, although the condition is rare, most cases have been in children.


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