A new study published online in the journal
Annals of Allergy,
Asthma, and Immunology raises some interesting questions about
whether very young children who receive antibiotics develop asthma more
frequently than those who do not.
The retrospective study, which was conducted by Dr.
Kenneth D. Mandl and colleagues at the Harvard Medical School examined data from
insurance claims of more than 60 thousand children over an eight year period
beginning in 1999. The study was designed to determine whether children who
were given any antibiotic prior to age 1 developed any of three subtypes of
asthma.
Indeed, children who were treated with antibiotics before
age one were twice as likely to have transient wheezing, and 1.6 times more
likely to develop persistent asthma. Furthermore, there was a dose response;
children who received more courses of antibiotics were more likely to develop
asthma than those who received fewer courses.
There are a number of ways to interpret these findings,
including the “hygiene hypothesis”— a theory which asserts that a reduction of
exposure to antigens early in life leads to an overly responsive immune
response later on, leading to an increased risk of various allergies (the rise
in peanut allergies being a prime example)......To Read More....
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