Should you be concerned about a malaria comeback in the US? Elizabeth Tracey reports

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Mosquito borne illnesses may include those caused by viruses or parasites. With factors such as frequent international travel and climate change, conditions are improving for malaria to be seen more often in the United States, which is transmitted from the bite of an anopheles mosquito. Christopher Potter, a mosquito expert at Johns Hopkins, explains.

Potter: The biggest killer is malaria, so anopheles mosquitoes kill about 600,000 people every year from an infected bite. And so most of those are children. The amazing fact is that mosquitoes kill more humans than humans do, which is a mind boggling to think about that. Mosquitoes really are the most dangerous animal on this planet. It's only the female mosquito that bites. She bites us because she needs our blood for the proteins that are in our blood. Blood meal indicates she's going to be able to lay her next generation of eggs.  :30

Potter notes that avoiding being bitten remains the best strategy, along with removing sources of water for the mosquito to lay her eggs. At Johns Hopkins, I’m Elizabeth Tracey.