Bite by an Aedes mosquito. This species can transmit diseases such as chikungunya, dengue, and Zika. Credit: NIAID (Photo by: IMAGE POINT FR/NIH/NIAID/BSIP //Universal Images Group via Getty Images) BETHESDA, Md. - A new study revealed that a protein found in mosquitoes could help in treatments in some life-threatening viruses like West Nile and Zika and possibly COVID-19.The National Institutes of Health released its report Wednesday and said the findings could lead to help for millions of affected people worldwide.RELATED: COVID-19 pill effective in preliminary testing may be 'holy grail' of pandemic, doctor saysScientists said the mosquito protein AEG12 weakens certain viruses by breaking down its protective covering.