Overview
- Bolivia has reported 1,534 chikungunya cases, including 1,409 in Santa Cruz, where authorities confirmed the death of an 80-year-old man.
- Santa Cruz officials say cases doubled in a week and report six patients in intensive care, including two newborns, prompting expanded fumigation and breeding-site elimination.
- Salta, Argentina has confirmed six cases this surveillance season, concentrated in the north, with two recent infections tied to travel to Bolivia and one case under investigation.
- Argentina has logged 1,481 suspected cases nationally this season with no confirmed local transmission, and most detections are linked to travel to Bolivia, Brazil, Paraguay and Cuba.
- Baja California, Mexico recorded three chikungunya cases in 2025 imported from Cuba and continues vector surveillance with ovitraps and laboratory confirmation through the state lab and InDRE.