Table 1.

Demographic, clinical, and laboratory findings of chikungunya patients

Patient ID	Gender	Age (years)	Illness onset (date)	Illness onset (EW*)	Travel†	DENV NS1 ELISA	Dengue diagnosis	CHIKV RNA‡	CHIKV isolation
R-413	F§	38	October 3	40	ND‖	−¶	−	+	NT#
R-462	F	68	October 14	41	No	−	−	+	NT
R-482	F	28	October 19	42	No	Inconclusive	−	+	NT
R-606	F	67	October 29	43	No	+**	DF††	+	NT
R-607	F	51	November 3	44	Yes	+	DF	+	NT
R-615	M‡‡	33	November 3	44	No	−	−	+	NT
R-702	F	52	November 8	45	ND	−	−	+	NT
R-703	F	43	November 9	45	ND	−	−	+	NT
R-756	M	18	November 10	45	ND	+	DHF§§	+	NT
R-779	F	29	November 12	45	No	−	−	+	NT
R-1950	M	28	November 3	44	No	+	DF	+	+
R-1972	F	62	November 4	44	ND	+	DF	+	+
R-2295	F	43	November 10	45	ND	−	−	+	+

CHIKV = chikungunya virus; DENV = dengue virus; ELISA = enzyme-linked immunosorbent assay; EW = epidemiological week; NS1 = nonstructural protein 1.

^*Epidemiological week.

^†Defined as traveling outside of Tamaulipas in 2015.

^‡Ct values ≤ 36 were considered positive.

^§Female.

^‖Not documented.

^¶Negative.

^#Not tested.

^**Positive.

^††Dengue fever.

^‡‡Male.

^§§Dengue hemorrhagic fever.