https://travelhealthpro.org.uk/TravelHealthPro is the website comprising the travel health resources of the National Travel Health Network and Centre (NaTHNaC).https://worldhealthorg.shinyapps.io/mpx_global/#sec-cladesOn 13 April 2026, the first detection of clade I mpox in Poland was confirmed. The clade subtype is unspecified. The case is an adult male who had a travel history to Slovakia. No onward transmission associated with this case has been reported. Please see our Topics in Brief article for further details on mpox.https://polioeradication.org/about-polio/polio-this-week/In the week ending 22 April 2026, one cVDPV2-positive environmental sample was reported from Southern Province, Malawi, collected on 19 February 2026. Please see our Topics in Brief article for further details on polio.https://www.paho.org/en/arbo-portal/dengue-data-and-analysis/dengue-analysis-countryAs of 29 March 2026, 1,009 cases of dengue fever have been reported in Martinique since the start of 2026. DENV3 has been recorded. Please see our Topics in Brief article for further details on dengue.https://www.facebook.com/photo/?fbid=1268347138819735&set=a.180006940987099As of 14 April 2026, 122 suspected mpox cases (25 confirmed) have been reported in Sindh Province. Cases have been reported from Khairpur district, Sukkur and Karachi. Nine deaths have been recorded and newborn babies have been amongst those affected. No further information regarding the clade is available at present. Please see our Topics in Brief article for further details on mpox.https://cdn.who.int/media/docs/default-source/searo/whe/wherepib/2026_08_searo_epi_bulletin.pdfAs of 15 April 2026, 1,908 cases of dengue have been reported in the Maldives since the start of 2026. This represents an increase compared to the same period in previous years. Cases has been recorded across all Atolls. Please see our Topics in Brief article for further details on dengue.https://polioeradication.org/about-polio/polio-this-week/As of 20 April 2026, two cVDPV1 cases were reported from the Upper Nile region. Onset of paralysis in both cases was February 2026. Please see our Topics in Brief article for further details on polio.https://reliefweb.int/map/world/epidemic-and-emerging-disease-alerts-pacific-21-april-2026#:~:text=Tonga%3A%20On%2017%20April%202026,new%20cases%20since%2019%20April.As of 20 April 2026, a total of 24 laboratory confirmed dengue cases have been reported in Tonga for 2026. The Ministry of Health have declared a dengue outbreak following an increase in confirmed and suspected cases, along with evidence of community transmission across Eua, Ha‘apai and Tongatapu. Please see our Topics in Brief article for further details on dengue.https://www.ecdc.europa.eu/sites/default/files/documents/Communicable-disease-threats-report-week-16-2026.pdfBetween July 2025 and March 2026, 11 travel-associated cases of Zika virus disease have been reported in France linked to travel to Indonesia, including all four cases detected in early 2026. Most cases were associated with travel to Bali and neighbouring islands. Please see our Topics in Brief article for further details on Zika virus.https://www.paho.org/es/arbo-portal/arbo-portal-oropoucheAs of 19 March 2026, a total of 21 cases of Oropouche virus disease (OROV) were reported in Colombia during 2025. Please see our Topics in Brief article for further details on Oropouche virus disease.https://www.afro.who.int/countries/burundi/news/burundi-investigates-illness-has-caused-five-deathsAs of 11 April 2026, a total of 35 cases of an undiagnosed illness, including five deaths, have been reported in Mpanda district, in the north of Burundi. Symptoms include fever, abdominal pain, vomiting, diarrhoea, blood in urine and fatigue. Some severe cases have also presented with anaemia and jaundice. Currently, laboratory testing is negative for Ebola and Marburg virus diseases, Rift Valley fever, yellow fever and Crimean-Congo haemorrhagic fever. Investigations are ongoing.https://www.who.int/emergencies/disease-outbreak-news/item/2026-DON597On 10 April 2026, the World Health Organization reported the first imported human case of avian influenza A(H9N2) in Italy. The case was in an adult returning from Senegal. This is also the first imported human case of avian influenza A(H9N2) reported in the European Region. Please see our Topics in Brief article for further details on avian influenza.https://cdn.who.int/media/docs/default-source/searo/whe/wherepib/2026_07_searo_epi_bulletin.pdfBetween 15 March and 7 April 2026, a total of 1,398 confirmed measles cases with 21 (128 suspected) deaths have been reported in Bangladesh. The highest number of suspected cases have been reported from the Dhaka, Rajshahi and Chattogram Divisions. Please see our Topics in Brief article for further details on measles.https://www.folkhalsomyndigheten.se/vara-amnesomraden/sjukdomsutbrott/hepatit-a-sverige-september-2025/As of 27 March 2026, a total of 11 cases of hepatitis A (genotype IA) associated with eating frozen imported strawberries and raspberries have been reported in Sweden since autumn 2025. Please see our Topics in Brief article for further details on hepatitis A.https://reliefweb.int/map/world/epidemic-and-emerging-disease-alerts-pacific-07-april-2026As of 2 April 2026, a total of 580 dengue cases have been reported in New Caledonia since January 2026. DENV?1 is the predominant circulating serotype. Please see our Topics in Brief article for further details on dengue.https://www.cdc.gov.tw/Bulletin/Detail/bZE85LXA9ZGdCvEJKZe6Cg?typeId=9On 3 April 2026, it was reported that the first locally acquired human case of avian influenza A(H7) in Taiwan has been identified as avian influenza A(H7N7). Please see our Topics in Brief article for further details on avian influenza.https://www.facebook.com/photo/?fbid=1387751253391963&set=a.253584503475316On 3 April 2026, the first detection of clade Ib mpox in Ecuador was confirmed. Please see our Topics in Brief article for further details on mpox.https://www.cda.gov.sg/news-and-events/two-confirmed-cases-of-locally-transmitted-mpox-clade-ib-infection/On 2 April 2026, the first two cases of clade Ib mpox were confirmed in Singapore. Please see our Topics in Brief article for further details on mpox.https://www.gov.uk/government/publications/polio-global-eradication-nac-and-environmental-surveillance/environmental-surveillance-for-polioAs of 26 March 2026, vaccine-derived poliovirus type 2 (cVDPV2) has been detected in two unrelated environmental sewage sample collected in London between January and March 2026. Sporadic vaccine-derived poliovirus type 2 (cVDPV2) environmental samples have been identified in various regions since 2022. There is no evidence of community transmission in the UK, and the risk to the public is low. Please see our Topics in Brief article for further details on polio.https://x.com/MOH_TT/status/2036471684727738581On 24 March 2026, the Trinidad and Tobago Ministry of Health reported a confirmed detection of yellow fever in a deceased monkey. No human cases have been detected. Health authorities are conducting surveillance and vector control measures in the area where the monkey was found. The last significant yellow fever outbreak in Trinidad occurred in 1979. Please see our Topics in Brief article for further details on yellow fever.https://africacdc.org/download/africa-cdc-epidemic-intelligence-weekly-report-march-2026/As of 13 March 2026, a total of 24 suspected cases (including three confirmed and nine deaths) of meningococcal disease have been reported from the Mangembo Health Zone of Kongo Central Province. Some cases have been confirmed as Neisseria meningitidis serogroup W135. Please see our Topics in Brief article for further details on meningococcal disease.