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How Hong Kong can better protect children from the flu

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A low percentage of Hong Kong students have received flu vaccinations, at least partly due to scepticism over whether they work. Photo: Felix Wong
Due to the severe influenza outbreak in January, local kindergartens and primary schools had to close early for Lunar New Year, while the hospitals struggled to take care of flu patients.
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Considering the relatively low vaccination rates among children, the Department of Health has planned to inoculate more schoolchildren on campus through an outreach programme in the 2018-19 flu season. A similar outreach programme was launched in 2017-18, but only about 24,000 children from 54 primary schools and 7,800 children from 60 kindergartens received vaccinations.

To better protect children, the government should introduce a comprehensive monitoring system for influenza activity among them and target the more vulnerable groups of children to promote flu shots.

Since some parents are sceptical about the effectiveness of flu vaccination, stronger evidence is needed about how well flu shots can protect children.

According to a recent study led by the University of Hong Kong, influenza vaccination could reduce infection rates by 65 per cent for children aged six months to 17 years. However, the study was based on data collected from 1,078 children admitted to two hospitals between December 4, 2017 and January 31, 2018. Without more comprehensive data on infected children, it is not possible to more precisely assess vaccination effectiveness among different age groups. The researchers were also unable to study the vaccination efficacy among outpatients.

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Crowds at a clinic in Mong Kok amid a flu outbreak in February. Photo: Sam Tsang
Crowds at a clinic in Mong Kok amid a flu outbreak in February. Photo: Sam Tsang
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