Originally called Bacillus Calmette-Guérin, the tuberculosis vaccine, BCG, is one of the most famous and important in childhood.
Bacillus Calmette-Guérin, famous BCG, is a vaccine against tuberculosis. It certainly left a mark on you, as the scar is probably on your arm to this day.
Firstly, do you remember what tuberculosis is? Basically, it is an infectious disease that mainly attacks the lungs, but can occur in other organs.
The vaccine was developed by Camille Guérin and Albert Calmette in Paris. Furthermore, it began to be produced in 1921. Initially, BCG was administered orally. From 1968 onwards, it began to be applied intradermally in Brazil.
Above all, BCG is injected into the child’s right arm, in the lower part of a region called the deltoid. Discover a little more about her
The BCG scar
Firstly, the vaccine is produced from a bacteria called Mycobacterium bovis found in cattle. After the vaccine is administered, a small lesion appears that gives rise to a papule, a solid elevation of the skin.
After about a month, the papule regresses and becomes an ulcer, which in turn causes a scar. If the lesion becomes very large and contains a large amount of pus, it is necessary to see a doctor.
About BCG
Initially, BCG is part of the Basic Vaccination Calendar. It is mandatory for children under one year of age, who should preferably be vaccinated before leaving the maternity ward.
Furthermore, for newborns to receive the vaccine, they must weigh 2kg or more and be in perfect health. Children who were not vaccinated early in life should receive the vaccine during school age.
The vaccine provides more than 80% protection against severe and disseminated forms of the disease, such as tuberculous meningitis and miliary tuberculosis.
BCG, however, is not recommended in cases of immunodeficiency, weight less than 2 kg, malnutrition, fever, treatment with corticosteroids or chronic diseases. After vaccination, there are few reports of adverse effects.
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Source: World Health Education
Featured image: ac24Horas
