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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.



