Some 45% of adults surveyed in Hong Kong in Summer 2009 say they would take up free swine flu vaccination.
However, this figure drops to around 1 in 7 (15%) if the price they have to pay for the vaccine reaches $HK200 (Ģ16; 17; $26). In the absence of proved efficacy and safety, the figure decreases to less than 1 in 20 (5%), according to one of the first studies on behavioural intentions and A/H1N1 vaccination, published on BMJ today.
The authors, led by Professor Lau at the Chinese University of Hong Kong, conclude that uptake of swine flu vaccination among the general population is unlikely to be high and would be sensitive to price and safety of the vaccine.
The results of the study also reveal that more than 6 out of 10 (63%) people mistakenly believe that the efficacy of the vaccine had been confirmed by clinical trials and around one in six (16%) believe it is necessary for all Hong Kong people to be vaccinated against swine flu.
In September 2009, there were over 22,000 confirmed swine flu cases in Hong Kong resulting in 15 associated deaths. The Hong Kong government has proposed to purchase 5 million shots of the vaccine and said it would initially be offered to 2 million high risk groups. The government also estimated that 500,000 people could voluntarily pay for vaccination; however pricing has still not been agreed.