Infectious diseases are caused by viruses, bacteria, fungi, or parasites. Recognizing symptoms early can help reduce complications, prevent the spread of infection, and support timely treatment.

Health Decoded Guide provides easy-to-understand, medically reviewed information to help you understand common infections, how they spread, available treatments, and ways to protect yourself and others.

Many infections are mild and improve with appropriate care, while others require urgent medical attention.

Browse infectious disease topics below.

🟧Common Viral Infections

🟧Bacterial Infections

🦟Mosquito-Borne Infections

🟧Digestive Infections

🟧Skin and Eye Infections

🟧Other infections