The organisms that make the disease can be viruses, bacteria, ricketsials, fungi. All infectious diseases are characterized by the ability to pass to humans in one or more ways. Human beings may come into contact with human beings as well as human beings from human beings. The main forms of contamination are:

By inhaling the droplets from the mouth (drowning, pertussis and various respiratory diseases) while crying, coughing, talking;

Direct skin contact

Through the use of materials such as laundry, bedding and food utensils used by the patient;

Animal is human or human from disease (The most vivid example is the mosquito carried by anophyllous mosquitoes, and pigeons carry the disease "psittacosis");

With contaminated microbes contaminated foods and beverages (Water-borne diseases are mainly typhoid, dysentery, cholera, paratyphoid, food poisoning and gastroenteritis may occur with food);

Infection from a diseased mother during pregnancy or during birth with infectious disease of the baby (syphilis, rubella, gonorrhea, or gonorrhea) can be transmitted through this way.

In the immunity brought artificially, the person is given attenuated, dead microbes or germs. Antibodies are formed against these without any indication of disease. Thus, the person is protected against the disease. This is the vaccine against many diseases. Vaccines are not effective in any infectious disease, but only in a number of diseases.

Those who are more unlucky (more likely to get caught) are:

Infectious diseases are those where the epidemic goes,

Babies less than three months old,

People who have infectious disease in their family,

Old and bedridden,

Those who have a disease that infects the immune system, such as cancer,

Those who use immunosuppressants.

In infectious diseases there are some symptoms that are found in almost all patients. These; Fever, fatigue, loss of appetite, headache, general body pain. Some diseases can be rashes (red, measles, as in flowers). Diarrhea is common in diseases that involve the digestive system.

Every born child should get vaccinated when the time comes. The body should keep it strong and careful about eating and drinking. He must have a regular life. If it is necessary to go where the contagious disease epidemic is compulsory, a medicine should be consulted about the measures to be taken and the vaccinations to be carried out. Do not eat uncleaned unclean foods, should pay attention to body cleanliness.

The treatment of infectious diseases varies widely, depending on the type of disease-causing microbes. Penicillin and similar antibiotics are effective against bacteria. Diseases caused by protozoan (single-celled) microorganisms such as malaria are also cured with medicines composed of a variety of chemical substances (such as the effect of quinine compounds on malaria). Virus diseases are not affected by antibiotics.

Major infectious diseases are: Gonorrhea, Brucellosis, Flower Disease, Diphtheria, Dysentery (amygous or basil), Influenza, Hepatitis, Measles, Cholera, Meningitis, Psittacosis, Malaria, Chickenpox, Tetanus, Tularemia, Tuberculosis, Typhus.