A condition in which a disease does not strike even when its germs are present.
Answers
Answer:
When immunity is strong a disease does not strike even when its germs are present.
Answer:There are, however, some germs which can make people sick if they enter their bodies, for example, hepatitis A and Salmonella germs.
Other germs which usually stay in certain parts of the body where they do not cause disease, will make a person sick if they find their way to another part of the body. For example, Escherichia coli (which is also sometimes known as E. coli) lives in the gut and helps digest food. However, if it gets outside the gut, E. coli can cause sickness such as bladder infection.
Food, water or air can be made dangerous to humans and other animals by things which are living in it or mixed into it. When this happens, it is said to be contaminated or polluted. Food and water can be contaminated by disease-causing germs.
Germs can get into the body through the mouth, nose, breaks in the skin, eyes and genitals (privates). Once disease-causing germs are inside the body they can stop it from working properly. They may breed very quickly and in a very short time a small number of germs can become millions.
Germs can cause disease by upsetting the way the body works. They do this when they:
produce toxins (poisons)
increase their number greatly by breeding and they can stop parts of the body from working properly, or
attack and damage a particular part of the body
Sometimes the diseases caused by germs are not serious and will go away after a day or so. At other times, the disease may be very serious and may even cause the person to die. In some cases diseases caused by germs have to be treated with medicines such as tablets, injections or syrups. The medicines stop the disease by killing the germs.
Diseases caused by bacteria germs are called bacterial diseases, and those caused by virus germs are called viral diseases.