The female Anopheles mosquito bites increasingly outdoor, resulting in additional malaria cases. (Photo: Joachim Pelikan, Swiss TPH)
Bed nets and indoor residual spraying with insecticides are key interventions to protect people in their homes from mosquito bites, thereby preventing malaria transmission. A remaining challenge is the transmission that occurs outdoors. A new study found that the proportion of outdoor mosquito bites in sub-Saharan Africa has increased. This could potentially lead to a substantial increase in malaria cases. The research was conducted by a group of international scientists including from Swiss TPH and published yesterday in the journal Proceedings of the National Academy of Sciences. Countries have substantially reduced the number of malaria cases and deaths since 2000. However, progress has stalled in recent years with an increase in malaria cases and deaths reported in sub-Saharan Africa by the World Health Organization (WHO).
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