Why are we having whooping cough vaccination
Posted on October 23, 2009
Filed Under H1N1 Prevention | Leave a Comment
Pertussis is caused by Haemophilus pertussis respiratory infection. Its source of infection what is it? The patient is the only source of infection, including patients with a typical patient and light.
Bordetella pertussis outer environment is not easy to survive only in the upper respiratory tract mucosa in the growth and reproduction, accompanied by droplet spread, so the main route of transmission of pertussis, when droplets by coughing, the patient has less than 2m around about the possibility of inhalation of bacteria . Bordetella pertussis in vitro die soon, so very little by way of clothing, utensils and other indirect communication.
In addition, the population of the universally susceptible to whooping cough, in children, especially infants and young children during the period of the strongest, it is because during pregnancy the mother did not Bordetella pertussis antibodies by the placenta to the fetus, therefore, after the birth of newborns can be infected with the disease.
Age of smaller, higher mortality rates, suffered from whooping cough is given to persistent immunity, his life was very little whooping cough twice.
Longer course of whooping cough, some after three stages: inflammatory phase is about 1 ~ 2 weeks, spasm of cough for about a 2 to 8 weeks recovery period is about 2 ~ 3 weeks, plus about 10 days incubation period, the entire course of about 3 month or so. In general, pertussis are contagious from the onset date, but in the course of the disease is different in different periods of infectious and which one is most contagious stage of it? Through medical research, it was found that patients with inflammatory phase, when pertussis is most contagious. Because at this time bacteria in the large population of upper respiratory mucous membrane, and with the droplets spread to in vitro; then the bacteria can produce more toxins, drugs, strong, pathogenicity is also very strong, so in the inflammatory phase transmission of pertussis patients of the strongest.
In addition, due to inflammation in children with symptoms of the lesser period easily ignored, the patient due to a larger range of activities which transmit the disease. Therefore, pay special attention to in the inflammatory phase of pertussis patients, in children suspicious should be carefully observed as early as possible to the hospital, early diagnosis, prompt isolation in order to avoid whooping cough epidemic.
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