These disease-transmitting insects are making waves of diseases across the world and here are some tips to stay away from such health issues...
Bites of parasitic insects such as mosquitoes, lice, fleas, bed bugs and ticks are able to transmit a number of diseases that affect animals as well as human being. Avoiding bites of these small creatures is the only way of preventing this hazardous disease. Globally, every year malaria, dengue, yellow fever, and Japanese encephalitis causes nearly 750, 000 deaths. Insect bites may be of two reasons: insect feeding (mosquitoes, bedbugs) or defense (bee, wasp, spider).
The infections carried by mosquitoes include West Nile Virus, La Crosse Encephalitis, Jamestown Canyon Virus, Western Equine Encephalitis, Eastern Equine Encephalitis, St. Louis Encephalitis, and so on. Other mosquito-borne diseases include malaria, dengue, chikungunya, yellow fever, and zika virus. Most of the mosquito-borne diseases are high in tropical regions.
Chikungunya virus primarily found in Africa and Asia spread to Western World in 2013. Chikungunya virus (CHIKV) is an infection transmitted by infected Aedes aegypti, during their daytime biting. The disease has recently emerged in many countries. There is no antiviral treatment available for this. 
Dengue is a tropical disease but small outbreaks have been reported in states such as Florida, Hawaii, and Texas in the past.  Zika virus outbreaks are common in tropical areas in the world and the first occurrence in Western World was at 2015. Some insect bites result in systemic reactions, the symptoms spread all over the body. Bed bugs are blood-sucking small insects which live in hiding places surrounding the bed. Bites are painless but in severe cases results in rashes.
Travelers should carry with them protective clothing, blankets, insect repellents, mosquito nets, fine-tipped tweezers, malarial tablet, dysentery tablet like metronidazole as hotel foods carry this amoeba organism in their food,  and also a first aid pack. One important thing that a traveler should carry is a pinch of common salt if any insect or ant gets into the ears, then immediately dissolves the salt in purified water and pour on to the ears, as this will kill the bug at once.