As you can see on the blood agar plates, some microbes can lyse red blood cells releasing nutrients into the surrounding area.  What might the advantage be for a bacteria to be able to do this?  Do you think this could have an effect on the bacteria’s virulence? Explain.

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Respiratory Infections

Respiratory infections are infectious diseases of the respiratory tract that are mostly caused by bacteria and viruses. They cause infections of the throat, sinuses, airway path, and lungs. Respiratory infections are typically divided into two types: upper tract respiratory infection and lower tract respiratory infection.