What are the main types of infectious agents?

What are the symptoms of a kidney infection? · fever and chills · cloudy, dark, bloody, or foul-smelling urine · frequent, painful urination · pain in your back ... Most kids have at least one middle ear infection by the time they are 3 years old, but adults can also get them. What causes middle ear infections? Infections are caused by bacteria. Although bacteria are abundant in our gastrointestinal (GI) tract and on our skin, they are usually kept in check by our ... What causes them? Middle ear infections are caused by bacteria and ... This makes it a perfect place for germs to grow and cause an infection. What ... They help fight infections that are caused by bacteria. Bacteria that resist treatment with more than one antibiotic are called multidrug-resistant organisms ( ... Candida is a yeast (fungus) that causes mild disease, but in immunocompromised individuals it may cause life-threatening illness. (Image courtesy of the Centers ... Feb 22, 2024 ... What Causes Opportunistic Infections? OIs are caused by a variety of germs (viruses, bacteria, fungi, and parasites). These germs spread in ... A vaginal yeast infection, which is also sometimes called vulvovaginal candidiasis, happens when the healthy yeast that normally lives in your vagina grows out ... 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 ... Those at greatest risk for bacterial pneumonia include people recovering from surgery, people with chronic respiratory disease or viral infection, children ...