Insect and Mosquito Repellents December 22, 2017 Many diseases are spread by insects and mosquitoes. The best way of protecting yourself from insect and mosquito bites is by using repellent. But which repellent is the best? Do "natural" repellents work as well as the "chemical" ones? Read more → chikunguya DEET dengue disease insect malaria mosquito natural repellent picaridin repellent repellents sunscreen travel health tropical disease yellow fever zika