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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
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