The immune system’s response to an infection can sometimes spin out of control, leading to a life-threatening condition called sepsis. Babies, children, and adolescents can develop sepsis.
Measles is one of the world’s most contagious diseases, and it can be especially dangerous for children under age 5 or for those with weakened immune systems.
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Because infants are vulnerable to infection with their still-developing immune systems, fevers during the first months of life are taken seriously.
There are all sorts of ways to get an infectious disease—from people and animals, to eating contaminated foods, to environmental exposure.
A common virus that often spreads during the wintertime, the flu can become a serious condition, especially for the elderly.
If you are bitten by a tick, there's no need to panic. Tick-borne illnesses such as Lyme disease can be treated effectively if caught early.
Global health and travel-related maladies are a group of diseases that can pose a serious threat to people who have traveled to certain countries. Learn about symptoms and treatment.
COVID-19 is the disease caused by the SARS-CoV-2, the 2019 novel coronavirus.
The common cold is probably the most universal illness. It is a viral infection of the upper respiratory tract, which includes the nose and throat area.