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NEW YORK (Reuters Health) – Peanut allergy has dropped in Australia after children began to be introduced to peanuts early in life, according to research presented at the American Academy of Allergy, Asthma and Immunology virtual annual meeting.

Early introduction of peanut at 4 to 11 months versus 5 years has been shown to prevent peanut allergy at 5 years in a randomized controlled trial, reducing allergy from 17% to 3%, Victoria Soriano, buy cheap propranolol uk no prescription a PhD candidate at Murdoch Children’s Research Institute, in Melbourne, noted in her presentation.

Australian infant feeding guidelines were updated in 2016 to recommend introducing peanut before 12 months for all infants, which led to a “dramatic increase” in peanut introduction by age 12 months, she noted.

To evaluate the impact of earlier peanut introduction on peanut allergy prevalence, the researchers compared a population-based sample of 1,933 infants from 2018-2019 to a sample of 5,276 infants recruited 10 years earlier (2007-2011). They collected demographic and infant feeding data via questionnaires and performed skin prick tests and food challenges on infants who were sensitized.

The adjusted peanut allergy prevalence in 2018-2019 was 2.6% compared to 3.1% in 2007-2011, which amounts to a 16% decrease, Soriano reported.

From 2018 to 2019, 77.7% of infants consumed peanut before turning one year old. Of those who consumed peanut, 2.6% were allergic to peanut. For infants who did not consume peanut within the first 12 months of life, 4.8% were found to be allergic to peanut.

“While we did see a decrease in individuals with peanut allergy, the prevalence of peanut allergy overall continues to be high even with early introduction,” Soriano said in a conference statement.

“More research must be done to look closer at these trends to help us understand how well early introduction to peanut works to prevent peanut allergies in real-life situations,” she added.

SOURCE: https://annualmeeting.aaaai.org/ American Academy of Allergy, Asthma and Immunology virtual annual meeting, presented February 27, 2021.

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