From microscopic mites dwelling in our hair follicles to sizable tapeworms inhabiting our intestines, the human body plays host to a surprising array of organisms. Some, like Demodex mites, coexist ...

Internal bleeding symptoms include severe pain, dizziness, swelling, and coughing up blood, depending on the affected area and the rate of blood loss. You might suspect internal bleeding if you ...

The viruses, bacteria, and parasites that cause sexually transmitted infections (STIs) have different incubation periods, or timeframes between when they are passed on and when symptoms appear. Some ...

Today, water, sanitation and hygiene (WSH) measures remain critically important to global public health, especially among children in lower income countries, who are at greatest risk from enteric ...