# Global infectious disease trends > Live situation record from CLSTR: https://clstr.news/situations/global-infectious-disease-trends > Updated: 2026-10-26T06:27:22.000Z. Sources: 3. Developments: 2. Global health reports indicate a rise in several infectious diseases across multiple continents. In Japan, an unusually early influenza season has emerged, with H1N1 outbreaks and advisories appearing as early as August, significantly ahead of historical medians. Experts have attributed this early surge to extreme summer weather and increased indoor air-conditioning use. Other significant global health trends include: • COVID-19 and Influenza: The XFG Omicron subvariant is driving an increase in COVID-19 cases in Europe, while influenza activity remains high. • Ebola: A major outbreak in the Democratic Republic of the Congo has reached nearly 10,000 cumulative cases, with additional cases detected in Kenya and Nigeria. • Measles: The United States has reported a sharp increase in cases, exceeding 4,500, which is more than double the previous year’s total. Outbreaks are also noted in Guatemala and Mexico. • Other diseases: Dengue fever remains prevalent in Southeast Asia and Bangladesh, while West Africa faces diphtheria outbreaks. Additionally, rising cases of Chikungunya and West Nile virus have been reported in France and Italy. ## Timeline ### 2026-10-26: Global infectious disease trends and early influenza outbreak in Japan Japan faces an unusually early influenza outbreak while global reports highlight rising cases of Ebola, Dengue, and Measles across Africa, Asia, and the Americas. 3 sources. https://clstr.news/cluster/global-infectious-disease-trends-and-early-influenza-outbreak-in-japan ### 2026-09-28: Global infectious disease trends show rising influenza and Ebola outbreaks Global health reports indicate rising influenza and COVID-19 cases, a major Ebola outbreak in the DRC, and record measles numbers in the US. Japan is also seeing an early influenza surge in Okayama. 7 sources. https://clstr.news/cluster/global-infectious-disease-trends-show-rising-influenza-and-ebola-outbreaks --- Cite as: Global infectious disease trends. CLSTR, https://clstr.news/situations/global-infectious-disease-trends