H1N1 swine flu spreads slower than regular flu and affects children faster than adults, according to a new CDC study released Wednesday.
When the H1N1 swine flu spreads it is more likely to hit children before adults, and children are more likely to bring H1N1 into the household.
The CDC study is published in the April issue Emerging Infectious Diseases.
A lead researcher for the U.S. Centers for Disease Control (CDC) and Prevention, Oliver Morgan said:
“We found that about 9 percent of people who lived with a household member with [H1N1] flu also got flu." "We found that 18 percent of children under 5, and 11 percent of children 5 to 18, got flu in the household," Morgan said.
The study reviewed over 3,400 H1N1 flu samples from the San Antonio, Texas area; the samples were taken between April-May of 2009 during the onset of the outbreak.
The study identified 97 cases of pandemic H1N1 flu that occurred in 77 households. In 30% percent of homes, once a child was affected it took four days on average for other family members to become sick.
The spread rate was about 4% is lower than the seasonal flu and lower than a pandemic flu, according to the study.
The spread of the H1N1 swine flu in Utah began to decline in October of 2009. In October, the number of people in Utah reported to have the H1N1 flu dropped half by the beginning of November.
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