Meningococcal DiseaseModerate
Democratic Republic of the Congo Meningococcal disease outbreak in Democratic Republic of the Congo with increased cases and outbreak activity in certain regions. CDC issued a Level 2 travel health notice recommending vaccination for travelers with prolonged close contact.
Andes virusModerate
Andes virus outbreak in Argentina with 8 cases (3 confirmed, 5 suspected) and 3 deaths reported in travelers who visited Argentina before boarding a cruise ship in Ushuaia as of 6 May 2026. WHO assesses global public health risk as low.
Andes HantavirusModerate
International (M/V Hondius cruise ship; Argentina/Chile/South Africa)10 cases Andes virus cluster confirmed aboard M/V Hondius cruise ship on 6 May 2026 with exposures linked to Argentina/Chile. As of 15 May 2026, 10 cases (8 confirmed) reported including 3 deaths, with secondary cases detected on ship and in South Africa; contacts identified in multiple countries.
Ebola Virus DiseaseHigh
Ituri, Democratic Republic of the Congo Ebola virus disease outbreak in Ituri province, DRC, involving the Bundibugyo strain with alarming expansion and active transmission requiring immediate public health response and WHO-recommended urgent measures.