![](http://www.alamy.com/thumbs/6/DF4EFC30-96F3-4FB6-9EF1-6CC1F45C90C5/2C3245M.jpg)
Young doctor research about the virus and bacteria
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Keywords: aids, alert, anti, attack, background, bacteria, biology, biomedical, blood, diseases, epidemic, figure, genetics, hand, health, hiv, holding, human, ill, illness, immune, infections, life, man, medicine, microbes, microbiology, microscopic, nucleus, organic, organism, physiology, research, science, scientific, sick, sickness, symbol, textured, transparent, viral, virus