Overview

• By the end of week 27 (June 19–July 5), Mexico had recorded 183 Rickettsia infections and 40 deaths, exceeding the total annual caseload from 2024.
• Sonora and Baja California remain the hardest hit with 45 cases each, while Chihuahua and Nuevo León report 37 and 17 infections respectively.
• Officials in Ensenada pinpointed Fraccionamiento Montemar as a high-risk zone after four recent fatalities were tied to tick populations in domestic environments.
• The death of a 9-year-old boy in Saltillo underscored how poor housing conditions and stray dogs can heighten exposure to infected ticks.
• Authorities advise residents to clear debris, treat pets for parasites and seek prompt medical care for symptoms like persistent fever, rash and muscle pain.