# Tamaulipas diarrheal disease surge > Live situation record from CLSTR: https://clstr.news/situations/tamaulipas-diarrheal-disease-surge > Updated: 2026-08-07T18:42:44.000Z. Sources: 7. Developments: 2. In late July, health officials in the Mexican state of Tamaulipas reported that acute diarrheal illnesses had affected 21,792 people, with children under five comprising the largest share. June saw the highest number of consultations, while July’s lower figures were attributed to reduced medical visits during the vacation period rather than a genuine decline in transmission. Officials warned that summer heat accelerates food spoilage and urged hygiene measures and prompt medical care. A week later, municipal authorities in Nuevo Laredo, also in Tamaulipas, described a sharp rise in consultations for diarrheal and other gastrointestinal illnesses as temperatures continued to climb. The 12 UNE clinics reported the highest case volumes, though they maintained sufficient medication stocks and continued to provide free treatment. Local officials reiterated hygiene advice and emphasized the need for early care, noting no severe cases. They also announced upcoming influenza, pneumococcal and COVID‑19 vaccination campaigns for the fall season. ## Timeline ### 2026-08-07: Nuevo Laredo sees surge in diarrheal disease cases amid summer heat Nuevo Laredo's municipal health office reports a summer‑driven spike in diarrheal illnesses, urging hygiene and offering free treatment at UNE clinics, with no severe cases reported. 4 sources. https://clstr.news/cluster/nuevo-laredo-sees-surge-in-diarrheal-disease-cases-amid-summer-heat ### 2026-07-30: Tamaulipas Health Officials Report Over 21,000 Diarrhea Cases in 2026 Tamaulipas reports 21,792 diarrhoea cases in 2026, mainly in children under five; officials urge hygiene, warn heat‑related food risks, and advise prompt medical care. 4 sources. https://clstr.news/cluster/tamaulipas-health-officials-report-over-21000-diarrhea-cases-in-2026 --- Cite as: Tamaulipas diarrheal disease surge. CLSTR, https://clstr.news/situations/tamaulipas-diarrheal-disease-surge