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Travel-Associated Chikungunya Virus Infection, Mexico, 2025

2026-01-15 infectious diseases Title + abstract only
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In November 2025, a traveler from Cuba tested positive for chikungunya virus upon arrival to Mexico. The virus belonged to the East-Central-South-African lineage, clustering with a clade prevalent in Brazil. Ten years after the last chikungunya epidemic in Mexico, strengthened surveillance is required to anticipate transmission of this emergent lineage.

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