One reason why a person suffering from malaria is bitten again by disease-carrying mosquitoes is because they find the patient’s smell irresistible.

This cocktail is irresistible to other hungry mosquitoes and the changes occur at the time when the host is highly infectious.
“These findings provide an important proof of concept regarding the identification of volatile biomarkers of malarial infection and the specific compounds identified should be viewed as promising candidates for further investigation, with work on malaria-induced changes in the odors of human subjects being an obvious priority for further research”, the researchers wrote in their report.
Source-Medindia