Vincent Ho, Western Sydney University A parasite is an organism that lives in or on an organism of another species. Three main classes of parasites can cause disease in humans: protozoa, helminths, and ectoparasites. Protozoa and helminths largely affect the gut, while ectoparasites include lice and mites that can attachRead More →

nurse covid-19 faint

Vasovagal syncope is the most common cause of transient loss of consciousness. The vasovagal reaction happens when a person faints because his/her body overreacts to certain triggers, such as the sight of blood, extreme emotional distress or physical pain. In general, The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly.Read More →