Since the beginning of the 20th century there has been no indigenous malaria in the United Kingdom but travel-associated cases are reported in those who have travelled to or arrived from malaria-endemic areas. The number of cases of imported malaria remains at around 2,000 per year, with the most recent figures being 1,677 for 2011.
The environmental conditions in the UK are currently not favourable for multiplication of the parasite or widespread distribution of vectors. A recent report on Health Effects of Climate Change on Public Health in the UK considered the risk of malaria in the UK to be low, but field-based research continues and investigators share data in order to be better able to observe trends.
Malaria is a notifiable disease in the UK, to ensure that any cases are investigated and that if necessary appropriate control measures can be taken.