Drip infectious diseases are much less frequent than before, and this is mostly due to systematic immunization since the birth of a child. Nowadays, many parents have a negative point of view on vaccination, although it is very effective in child protection. By being vaccinated, the organism creates antibodies that protect the organism from infectious diseases by fighting bacteria, viruses, fungi, parasites, and other pathogens. Drip infectious diseases are spread by sneezing, coughing (droplets), air and contact with the infected objects. The most common types of infectious diseases in children of school age are: scarlet fever, pertussis, chickenpox, measles, mumps, infectious mononucleosis, flu, pneumonia, streptococcal angina and others. Most of these diseases begin with the same general symptoms of the disease: headache, fever, fatigue, sneezing, coughing, sore throat. However, each of these diseases has its own characteristic symptoms such as " raspberry tongue" for scarlet fever or "whooping cough" for pertussis. For parents, teachers and professors of children, it is very important to know how to recognize the symptoms of an individual disease. If important symptoms are identified in a timely manner, we can help the children in treating the disease, prevent the complications and prevent the spread of infection. Also, it is very important that children from the earliest days learns to adopt hygienic habits by washing their hands, teeth and bodies frequently and wearing clean and neat shoes and clothes. Hygiene is one of the ways to prevent the spread of infectious diseases.