2023年2月4日 · To spread, a virus gets into a host's body and then into the host's cells. Then it takes over the host cell's machinery, using it to make more of the virus. Diseases caused by …

As a virus infects a group of people, the virus copies itself. During this process, the genetic code can randomly change in each copy. The changes are called mutations. If the coronavirus that …

2022年2月18日 · Infectious diseases commonly spread through the direct transfer of bacteria, viruses or other germs from one person to another. This can happen when an individual with …

2024年3月5日 · There's a difference between infection and disease. Infection, often the first step in getting a disease, occurs when bacteria, viruses or other microbes that cause disease enter …

Severe infection. People who have a severe C. difficile infection tend to lose too much bodily fluid, a condition called dehydration. They might need to be treated in a hospital for dehydration. C. …

2022年5月5日 · People often get H. pylori infection during childhood. Risk factors for H. pylori infection are related to living conditions in childhood, such as: Living in crowded conditions. …

2022年11月8日 · Methicillin-resistant Staphylococcus aureus (MRSA) infection is caused by a type of staph bacteria that's become resistant to many of the antibiotics used to treat ordinary …

2022年2月18日 · Antibiotics are usually reserved for bacterial infections, because these types of drugs have no effect on illnesses caused by viruses. But sometimes it's difficult to tell which …

2024年11月8日 · Bacterial orchitis. Most often, bacterial orchitis is linked with or is the result of epididymitis. An infection of the urethra or bladder that spreads to the epididymis most often …

2022年2月11日 · During pregnancy, a listeria infection is likely to cause only mild signs and symptoms in the mother. The consequences for the baby, however, can be devastating — the …