Meningitis can be a frightening diagnosis. Our expert guide breaks down the different types—bacterial, viral, and fungal—and ...

While there aren't exactly different types of hay fever, there are different types of pollen that trigger symptoms. And these allergens circulate at different times, depending on the time of year.

Not all types of flu are the same. Some types of flu can make you very ill, while others cause milder symptoms. Read on to learn about the different types of flu. Flu, or influenza, is a ...

Fever in children and teens may occur due to various reasons. This is also called febrile response or pyrexia, in which the body temperature increases more than the average temperature between 97 ...

Although fever is a common symptom of pneumonia, in some cases you can have pneumonia without a fever. Read on to learn more about this topic, the different types and causes of pneumonia, and ...