The vaccine is intended for babies to have resistance to the bacteria that causes whooping cough (pertussis). A recent study in the U.S. found, whooping cough vaccine will lose its effectiveness three years after the last vaccination.
Findings based on a survey of 15,000 children in Marin County, California, where the plague bacterium causes of cough killed 11 infants and infected more than 8,000 people in 2010.
n preliminary research presented at the Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC) at the American Society of Microbiology, experts found 171 cases of whooping cough there in all age groups of children, the largest occurred at the age of 8-12 years sebanyal 103 cases.
Children at this age have a 20 times higher risk of having whooping cough than those who are newly vaccinated. However, studies emphasizing the vaccine in the early months of the first five years will give better protection to reduce the symptoms of infection.
It is recommended that parents supervise when the child has whooping cough for up to 10 weeks old. It can be fatal especially in infants. Whooping cough is generally treated with antibiotics to reduce symptoms and prevent the spread of disease.
Whooping cough infects 30-50 million people worldwide each year and kills about 300,000 people, according to the U.S. disease control center
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