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Table 2 Respondents’ dengue knowledge, household dengue prevention practice and vaccination attitude

From: The acceptance and willingness to pay (WTP) for hypothetical dengue vaccine in Penang, Malaysia: a contingent valuation study

Dengue knowledge

Correct answer

Respondent with correct answer n (%)

1. Dengue fever is caused by Aedes mosquitoes

Yes

393 (98.3)

2. Aedes mosquitos bite during early morning and late evening only

No

92 (23.0)

3. Aedes mosquitos breed and lay eggs in stagnant clear water only

No

73 (18.3)

4. One person can be contracted with dengue disease more than once in a lifetime

Yes

241 (60.3)

5. Children are more prone to contracting dengue fever

No

97 (24.3)

6. Dengue fever can be fatal

Yes

373 (93.3)

7. Every person with dengue fever requires blood transfusion

No

136 (34.0)

8. There are specific medicines that can cure dengue disease

No

164 (41.0)

Household dengue prevention practice

Never n (%)

Seldom n (%)

Occasionally n (%)

Frequently n (%)

All the time n (%)

1. We clean and scrub water containers in our house such as vases, flower pot bases and bath tanks

18 (4.5)

62 (15.5)

118 (29.5)

155 (38.7)

47 (11.8)

2. We remove water from items such as unused tyres, empty cans and empty bottles so that they will not become breeding grounds for Aedes mosquitoes

21 (5.3)

48 (12.0)

94 (23.4)

169 (42.3)

68 (17.0)

3. I buy insect repellent for my family members to prevent them from contracting dengue

31 (7.8)

30 (7.5)

90 (22.5)

155 (38.7)

94 (23.5)

4. We use mosquito bed nets and window screens in our house

179 (44.7)

67 (16.7)

68 (17.0)

47 (11.8)

39 (9.8)

5. We limit our outdoor activities during early morning and late evening to avoid being bitten by Aedes mosquitos

113 (28.2)

100 (25.0)

88 (22.0)

72 (18.0)

27 (6.8)

Vaccination attitude

Strongly agree n (%)

Disagree n (%)

Undecided n (%)

Agree n (%)

Strongly agree n (%)

1. I think vaccination is important for certain disease prevention

1 (0.3)

10 (2.5)

42 (10.5)

195 (48.7)

152 (38.0)

2. All vaccines registered with Malaysia Ministry of Health (MOH) are safe

3 (0.8)

7 (1.7)

79 (19.7)

189 (47.3)

122 (30.5)

3. I always make sure that my children’s vaccination schedule is met#

0 (0.0)

2 (1.1)

21 (13.1)

78 (42.6)

82 (44.8)

  1. #Question no 3 was answered by respondents with children only, where n = 183