Reported food poisoning outbreaks cases and the number of people affected has decreased significantly from 1997 to 2014, according to the notifiable infectious diseases report of Center for Health Protection of Hong Kong.
Most years’ food poison outbreaks was found to go up and down according to the year’s average temperature.
With a more and more cool weather recent years, the cases of food poison went down as well.
In 1998, which was the warmest year since 1982, reported by Hong Kong Observatory, a thousand more people were affected by food poison from the former year.
However, in the years of 2004 and 2005, during which time Hong Kong was recovering from the SARS disease, despite the dropped temperature, the food poison went up.
In 2007, when the city was hit by strong typhoon and extreme weather, the reported food poison outbreaks declined considerably from the peak of 2006’s 1,094 cases, which affected 4,144 people.
Hong Kong’s year 2006, accompanied with a relatively stable political environment and economy boom, reached the highest food poison outbreaks on the record.
More than 70 per cent of the 17 years had their highest number of food poison cases in summer.
July and August had the highest frequency of food poison outbreak since 1997 to 2014.
Except for summer, winter is another hot outbreak season for food poison. Four of the 17 years had their highest outbreaks in November, December and January.
Graphic Tool: PiktoChart Infographic, Google Fusion Table.