Zithromax contains Azithromycin, a broad-spectrum macrolide antibiotic with a long half-life and effective tissue penetration. Therefore, Zithromax is mainly used to treat infections of the respiratory tract, intestines and genitals.

In recent years, Vibrio parahaemolyticus has become a common cause of food poisoning, especially seafood. Enteritis caused by Vibrio parahaemolyticus occurs after the patient eats food containing the pathogen. Symptoms may be mild and not dangerous, but can also cause death.