Table 2.

Knowledge of Zika Symptoms, Complications, Transmission, and Prevention Among Travelers from US States to Zika-Affected Areas

If a person infected with Zika virus does get symptoms, what symptoms are most common?
	Total (%) (n = 1,285)	HPa (%) (n = 72)	Non-HPa (%) (n = 1,213)	RAb (%) (n = 631)	Non-RAb (%) (n = 582)
Fever	69	87c	68	66	72
Headache	52	70c	51	49	55
Joint pain	45	63c	45	44	45
Rash	35	61c	34	33	35
Coughing and sneezing	35	57c	34	39c	27
Conjunctivitis or red/pink eyes	22	62c	20	24c	15
To the best of your knowledge, can a person get infected with Zika virus in each of the following ways?
	Total (%) (n = 1,285)	HPa (%) (n = 72)	Non-HPa (%) (n = 1,213)	RAb (%) (n = 631)	Non-RAb (%) (n = 582)
Through mosquito bites	90	87	90	86	95c
Through blood transfusions	57	74c	56	61c	48
Through vaginal or anal sex without a condom	53	73c	52	53	52
Through oral sex without a condom or dental dam	40	57c	39	40	37
Through contact with urine or saliva of someone who has Zika virus	37	44	37	37	37
By being sneezed or coughed on by someone who has Zika virus	22	46c	21	21	20
Through which of the following ways, if any, can a person protect themselves from getting Zika virus?
	Total (%) (n = 1,285)	HPa (%) (n = 72)	Non-HPa (%) (n = 1,213)	RAb (%) (n = 631)	Non-RAb (%) (n = 582)
Avoid travel to places where Zika virus is present	86	81	86	82	93c
Use insect repellent when going outdoors	85	87	85	80	92c
Wear long-sleeved shirts and long pants when going outdoors	82	90	82	76	90c
Eliminate standing water from the house and yard	81	82	81	73	92c
Use screens on open doors or windows, or use air conditioning	78	71	79	72	87c
Consistently use condoms during sex	58	70	58	57	59
Wash hands	50	61	50	47	53
Avoid people who are coughing and sneezing	40	62c	39	39	40
Avoid having sex	37	54c	36	38	34
Wear a mask	32	67c	31	33	28
Avoid unpasteurized meat and milk products	25	51c	23	26c	19
To the best of your knowledge, in order to spread Zika virus, does a person need to show symptoms or can a person spread Zika virus without showing symptoms?
	Total (%) (n = 1,285)	HPa (%) (n = 72)	Non-HPa (%) (n = 1,213)	RAb (%) (n = 631)	Non-RAb (%) (n = 582)
Does not need to show symptoms	65	50	66c	62	71c
Incorrect/don’t know (NET)	32	50c	31	33	28
Does need to show symptoms	9	42c	7	10c	4
Don’t know	22	8	23c	22	24
Have never heard of Zika virus	3	0	3	5c	1
How likely is it that someone who gets infected with Zika virus will have any symptoms?
	Total (%) (n = 1,285)	HPa (%) (n = 72)	Non-HPa (%) (n = 1,213)	RAb (%) (n = 631)	Non-RAb (%) (n = 582)
Very likely	18	47c	17	17	16
Somewhat likely	41	32	41	37	46c
Not very likely	19	13	19	20	18
Not at all likely	2	5	2	2	2
Don’t know	17	3	18c	19	16
Have never heard of Zika virus	3	0	3	5c	1
To the best of your knowledge, have each of the following health complications been associated with Zika virus?
	Total (%) (n = 1,285)	HPa (%) (n = 72)	Non-HPa (%) (n = 1,213)	RAb (%) (n = 631)	Non-RAb (%) (n = 582)
A birth defect in babies born to infected mothers, where the baby’s head is unusually small and can be a sign of incomplete brain development, also called “microcephaly”	78	80	78	72	87c
Other kinds of brain damage or physical problems in babies born to infected mothers where the baby’s head is not unusually small	48	64c	47	44	51
A form of paralysis, also called “Guillain-Barré Syndrome”	23	54c	22	22	22
An infection of the lungs, also called pneumonia	23	45c	22	24c	17

^aHousehold pregnancy (HP): Travelers who responded “Yes” to the question, “As far as you know, was anyone in your household pregnant or considering getting pregnant at the time of your trip to [destination]?” Non-HP: Travelers who responded “No,” “Don’t know,” or refused the question.

^bReproductive age (RA): Female travelers 18–44 and male travelers 18–54 who responded “No,” “Don’t know,” or refused the question, “As far as you know, was anyone in your household pregnant or considering getting pregnant at the time of your trip to [destination]?” Non-RA: Female travelers 45+ and male travelers 55+ who responded “No,” “Don’t know,” or refused the question.

^cPercentage is statistically greater than comparison group.

Note: Results shown are weighted. Responses of refused <5% not shown.