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There are over 3,500
of mosquitoes worldwide. Only some of these bite
. Only the females bite. They need blood so their
get protein. Mosquito bites are
. They become itchy and can swell up. Millions of people have died from the
that mosquitoes spread. These include
, yellow fever and Zika, among
. To avoid getting bitten, it is best to cover your
. It is also a good idea to use insect spray (day and night, indoors and
). Sleeping under a mosquito net also reduces the
of being bitten.