Children should be among the first people to be vaccinated against swine flu if health officials hope to temper the severity of the epidemic, a study published Thursday has found.
That's because, as every parent knows, schools are prime breeding grounds for spreading the flu and children are expected to experience the highest illness rate.
"If you have little vaccine available, you should vaccinate high risk people first to avoid death but then vaccinate children," said co-author Elizabeth Halloran of the Center for Statistics and Quantitative Infectious Disease at the University of Washington.
"If children could be vaccinated it will reduce a lot of the transmission and if your child doesn't come home sick from school then you don't have to stay home from work, which can be a real problem for a lot of people."
By studying early reports of the swine flu's spread, Halloran and her team were able to determine that the typical student will infect an average of 2.4 other children at school before he or she is sick enough to be kept home.
The overall transmission rate was estimated to be 1.3 to 1.7 people sickened by every infected person, the study published in the journal Science found.
About a third of those infected will likely not get sick enough to show symptoms.
A transmission rate of 1.6 people sickened would mean some 32 percent of the population - or 2.2 billion people worldwide - will get sick from swine flu this year.