Stomach flu or gastroenteritis is caused by a contagious virus. Learn about stomach flu symptoms and home remedies to relieve dehydration and diarrhea. Stomach flu or gastroenteritis is caused by a contagious virus. Learn about stomach flu symptoms and home remedies to relieve dehydration and diarrhea.
Antibiotic resistance is the ability of bacteria to resist the effects of an antibiotic â that is, the bacteria are not killed, and their growth is not stopped. Resistant bacteria survive exposure to the antibiotic and continue to multiply in the body, potentially causing more harm and spreading to other animals or people.
Bacteria and Drug Resistance. Bacteria live in our bodies and in our environment, usually without causing any illness. When bacteria do make us sick, antibiotics are usually available to treat the illness. However, over time, bacteria develop resistance to some types of antibiotics. This means that the drugs are no longer effective at killing the bacteria and the infections become harder to treat. If bacteria are resistant to more than one type of antibiotic, they are called multidrug-resistant organisms, or MDROs.