The 2-dose oral vaccine had an efficacy of 73% in healthy volunteers who were exposed to Salmonella Paratyphi A, which causes paratyphoid fever.
The team will examine the role that the gut microbiome plays in making some people resistant to colonization by Salmonella Typhimurium, a leading cause of invasive non-typhoidal Salmonella disease.
An outbreak centered largely in twin towns on the Arizona-Utah border has now reached 124 measles cases.
Researchers say the investigational three-strain vaccine produced a strong immune response and was well-tolerated in its first human trial.
In 2023 the outbreaks were linked to 12 deaths.
Several meals delivered during the week of July 28, 2025, are implicated in this outbreak.
The recalled eggs were distributed to grocery stores and food distributors in California and Nevada under 3 brands: Nagatoshi Produce, Misuho, and Nijiya Markets.
The CDC's FoodNet program has reduced required surveillance from 8 foodborne pathogens to 2, a move some experts warn could leave the country more vulnerable to outbreaks.
Researchers find that strains of Salmonella Dublin are highly connected across humans, cattle, and the environment.
The strain is genetically related to one that caused a 2012-14 reptile-related outbreak of 160 cases in 35 states.
