People infected with malaria smell differently than healthy individuals and this can be used to diagnose the disease early
Scientists smell malaria: odor test helps diagnostic - science news in brief

Malaria affects more than 200 million people worldwide. Identifying people infected is difficult because the disease can be asymptomatic for a long time. But, this is about to change as researchers have discovered that the smell of people infected with malaria is different. A new study investigated the volatile chemicals released from the skin of children from Kenya and discovered that they had a particular profile when the child had an acute or asymptomatic malaria infection. The detection rate of the disease was close to 100% when this approach was used. The results were encouraging and now the scientists are planning to develop clinical applications based on the newly identified volatile biomarkers.

Read the full story: ETH Zurich
Scientific publication: PNAS