Of these 16, 5 (31%) had PCR confirmation of CHIKV; 1 had PCR confirmation for both scrub typhus and CHIKV, 7 (44%) had positive CSF anti‐CHIKV IgM ELISA; while 3 patients neither had positive CHIKV PCR or CSF anti‐CHIKV IgM ELISA (Table 2, Table S4). The gene discussed is CD40LG; the disease is scrub typhus.