According to WHO, in week 23, 2026 (1st June to 7th June): 17 out of 26 countries of the enhanced meningitis surveillance network shared their meningitis epidemiological data.
Epidemics (incidence ≥ 10/100’000 inhabitants):
Alerts (incidence ≥ 3 and <10/100’000 inhabitants):
For previous epidemics and alerts, see news at www.healthytravel.ch.
Vaccination with a quadrivalent meningococcal conjugate vaccine (Menveo® or Menquadfi®) is recommended as follows:
Guatemala: Since the outbreak began in January 2026, Guatemala has reported 16,840 measles cases (6,903 laboratory-confirmed) and 22 deaths, up from 10 deaths in mid-May. Most fatalities occurred in young children, including three infants too young to be vaccinated.
Guatemala Department accounts for nearly half of confirmed cases, with Guatemala City reporting over 2,100 infections. Weekly cases peaked in March and have since declined substantially.
The outbreak was linked to a large international religious gathering in December 2025. More than 1.1 million vaccine doses have been administered, and mass vaccination campaigns are being expanded to affected departments.
Honduras: As of 12 June 2026, Honduras has confirmed five measles cases: four imported from Guatemala and one locally acquired case in an unvaccinated 25-year-old woman on Roatán, marking the country's first autochthonous measles case since elimination in 1997.
In response, health authorities have launched contact tracing, expanded vaccination campaigns, mandated mask use in health facilities, and extended the national immunization campaign through 30 June. Vaccination coverage remains below the 95% target.
Measles outbreaks are increasing worldwide.
Measles spread quickly and can be dangerous - protection is simple: get vaccinated!
Swiss recommendations: All persons born after 1963 who have no documented protection against the infection (antibodies or 2 documented vaccinations) should be vaccinated twice with MMR vaccine at one month interval. In the event of an epidemic in the region or contact with a measles case, vaccination is recommended from the age of 6 months.
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