The American Academy of Pediatrics called the nasal flu vaccine is ineffective, and recommended to abandon this method of immunization. The statement, published in the journal Pediatrics, supports previous statements of the Advisory Committee on immunization practices and the centers for control and prevention (CDC).
A study conducted in the U.S. among children aged 2 to 17 years, showed that the nasal form of the vaccine only provides 3% protection against common in 2016 strains, whereas inactivated injectable influenza vaccine (VVM) gives 63% protection.
Flu shots provide a higher level of protection for children, convinced American pediatricians.
A live attenuated vaccine
Previously it was thought that a live attenuated vaccine in the nasal spray (LAIV) is as effective as vaccination IGV: LAIV contains live influenza virus that should cause a stronger immune response. But during the season of respiratory zabolevaniyami the vaccine was virtually useless. According to the CDC, the reason for the low efficacy of the vaccine LAIV unknown.
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Based on these results the American Academy of Pediatrics recommended to vaccinate against influenza all children over 6 months using IGV. Special attention doctors recommend be given to immunization of children and adolescents with diseases that increase the risk of complications of influenza: asthma and sickle cell anemia.