Pertussis is characterized by a moderate intoxication and a seizure-free whooping cough an acute infectious disease. Bordetella (the bacterium which is the causative agent of disease) is unstable when in the environment and die by drying. The source of infection is always sick person, especially in the first weeks of the beginning of the development of the disease. Pertussis is most often spread ill adolescents, because the disease passes easily and do not insulate. The infection can easily spread through airborne droplets.
Whooping cough is a highly contagious disease. After contact with patients in susceptible people almost always occurs with this disease. Whooping cough, as a rule, suffer little children, and in adults accounts for about 5% of the disease.
Disease of Pertussis
Infiltrating in the mucosa of the respiratory tract, the bacteria cause an increase in mucus and inflammation. The lumen of the small bronchi gradually clogged purulent-mucous samples, impair the function of the respiratory tract. Unfortunately, neither vaccination nor the disease can not provide lifelong immunity to pertussis. Therefore, adults may have a recurrence. The incubation period of this disease varies from 2 days to 2 weeks.
Symptoms of pertussis
Whooping cough begins with poor appetite, fever, runny nose, malaise and mild cough, which remains for 1-2 weeks, and then its intensity and frequency begin to increase. In the end all coughing fits, especially in young children, marked a painful and prolonged breathing difficulty, separation of vitreous phlegm, vomiting. During each attack of coughing the child is excited, his face becomes cyanotic hue, the veins of the neck extended, the mouth protrudes the tongue. Possible bleeding, respiratory failure, hemoptysis. The fits of coughing are repeated 5 to 50 times a day. They last about 2-4 weeks. Gradually the intensity and frequency of cough is reduced, but it continues for another 3 weeks. The majority of teenagers and adults the disease is not as heavy and is accompanied by the main symptoms of persistent, pronounced bronchitis.
Complications of pertussis
A serious complication of this disease is pneumonia. In addition, in some cases, may develop encephalopathy – changes in the brain. Because of the seizures, these changes can lead to death or cause epileptic seizures, deafness and other persistent damage.