Browse the corpus

Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.

1 passage

abstractpubmed· Abstract 2015· item PMID:26488312

Chikungunya Virus as Cause of Febrile Illness Outbreak, Chiapas, Mexico, 2014. Since chikungunya virus (CHIKV) was introduced into the Americas in 2013, its geographic distribution has rapidly expanded. Of 119 serum samples collected in 2014 from febrile patients in southern Mexico, 79% were positive for CHIKV or IgM against CHIKV. Sequencing results confirmed CHIKV strains closely related to Caribbean isolates.