People at higher risk of severe listeria infections include people who are pregnant, newborns, adults aged 65 or older, and people with weakened immune systems.
October 06, 2025
high
medical
Risk groups for severe outcomes from listeriosis
People exposed to mpox should receive mpox vaccination as soon as possible and before symptoms develop, should avoid intimate contact for 21 days after exposure, and people with weakened immune systems are at highest risk of severe disease and hospitalization, so vaccination with the full recommended two-dose series is advised for persons at risk.
high
public_health
Recommended post-exposure and preventive measures and risk factors for severe illness.
Young children, older adults, and people with weakened immune systems are at higher risk of severe Salmonella infections and may require hospitalization.
high
epidemiological
Identification of populations at increased risk for severe outcomes from Salmonella infection.