What is herd immunity and how does it protect against infection?

What kinds of bacteria can cause contagious skin infections? Certain bacteria commonly live on the skin of many people without causing harm. However, these ... Upper respiratory infections are a contagious infection of your upper respiratory tract, caused by bacteria or a virus. GBS in adults usually doesn't have any symptoms, but it can cause some minor infections, like a bladder or urinary tract infection (UTI). While GBS may not be ... Any surgery that causes a break in the skin can lead to an infection. Doctors call these infections surgical site infections (SSIs) because they occur on the ... What causes adenovirus infections in a child? Infection is caused by one of the group of adenoviruses. These are the most common ways the viruses are ... GBS infection usually does not cause problems before pregnancy. But it can cause serious illness for a newborn baby. It may cause sepsis, pneumonia, meningitis ... Mar 21, 2023 ... While HPV infections are very common, cancer caused by HPV is not. Most people infected with HPV will not develop a cancer related to the ... A vaginal yeast infection, which is also sometimes called vulvovaginal candidiasis, happens when the healthy yeast that normally lives in your vagina grows out ... Feb 27, 2025 ... A vaginal yeast infection is an infection of the vagina that causes itching and burning of the vulva, the area around the vagina. Vaginal yeast ... Dec 11, 2024 ... ... causes infections in or around the mouth (oral herpes or cold sores). It can also cause genital herpes. Most adults are infected with HSV-1.