Scientific consultants of the Centers for Disease control and prevention voted unanimously on Saturday to recommend vaccines for Covid for children under the age of 5 years, last group of Americans qualify for shots other than for infants under 6 months
Agency director Dr. Rochelle P. Walensky is expected to quickly approve decision. Parents should to be capable of start receiving young children immunized as soon like Tuesday.
Expert Advisors are almost guaranteed vote yes, despite reservations about the small number of data, especially on efficiency of Pfizer-BioNTech vaccine. Earlier this week another panel of experts advising the Food and Drug Administration were unanimous in their support for vaccines.
Federal Regulators Approved Moderna Vaccine for children aged 6 months to 5 years and the Pfizer-BioNTech vaccine for children aged 6 months to 4 years. (The Pfizer-BioNTech vaccine was available to children ages 5 and older from November.)
During of At a two-day meeting, CDC advisers heard evidence supporting efficiency of vaccines in the youngest children. But the committee repeatedly put pressure on Pfizer on their assessments and noted that the three doses of this vaccine would be needed to protect children compared with two doses of Vaccine Moderna.
Both vaccines are safe and both produced antibody levels similar to those observed. in young Adults. But on Saturday, CDC panel fought with in difficulty of recommending two very different vaccines for same population.
“Implementation of these two deployments are going to be incredibly challenging,” said Caitlin Jetelina, public health expert and author of widely read newsletter “Your Local Epidemiologist”.
“There must be a lot of active communication about the difference between them and the consequences of taking one over another,” she said.
In clinical trials with Moderna found those two shots of their own vaccine, each with one-fourth of the adult dose produced antibody levels that were at least as high as observed in young Adults.
The company evaluated the effectiveness of the vaccine against symptomatic infection at about 51 percent among children aged 6 to 24 months and 37 percent among children aged 2 to 5 years. side effects were minor, although about one in five children experienced fevers. Efficiency against severe illness and death assumed to be higher similar to the effects observed in Adults.
Based on on these data, the FDA authorized two shots of Moderna vaccines four weeks apart.
Vaccine Pfizer-BioNTech also elicited a strong immune response, but only after three doses, company officials told the scientific advisors. on Friday.
Two doses of the vaccine was inadequate, they said, justifying decision in February to delay vaccine approval until regulators have data on three doses. Two doses might not be enough because the company gave children just one-tenth of adult dose in every shot, some advisers said.
The vaccine is generally effective. of 80 percent in children up to 5 years, according to Pfizer scientists. on Friday. But this calculation was based on just three children in vaccine group and seven who received a placebo, making it an unreliable indicator, CDC advisers noted.
“We should just Let’s assume we don’t have efficacy data,” said Dr. Sarah Long, an infectious disease expert at Drexel University College. of Medicine. But Dr. Long said she was “comfortable enough.” with other data supporting vaccine effectiveness.
Three doses of the Pfizer vaccine produced antibody levels comparable to those observed in young adults, suggesting that this is probably just how efficient.
“Pfizer is a three-dose series, but as a three-dose series, it’s pretty effective,” said Dr. William Towner. who vaccine trials led for both Moderna and Pfizer at Kaiser Permanente in Southern California.
Any vaccine is better than none, Dr. Towner. added. He predicted that some parents can choose for Modern because it brings children to the pediatrician for two shots easier than an organization for get them three.
Pfizer vaccine has been approved for children 5 to 11 in November, but less than 30 percent in this age group received two shots. In polls conducted by the CDC, about half of parents said in February that they will vaccinate their children by May only one-third of parents stated that they intend to do so.
The consultants discussed whether vaccination increases protection against serious disease in children who have already was infected. There is little information available from children between the ages of 5 and 11 because of poor absorption of vaccine in this age group.
But in adults, infection with an earlier version of Omicron was insufficient on their own protection from newer versions.
Vaccinations are still necessary for protection children from future options, experts said. “In combination protection really the safest and most effective,” said Dr. Sarah Oliver, an associate at the Centers for Disease Control and Prevention. scientist who led the discussion on Saturday.
Parents of the youngest children may be more ready to choose for a Covid vaccine, if it can be offered along with other routine shots, Dr. Towner said.
“It area it’s a lot of people not sure of right now,” he said. “I hope some guidance will be offered on this.”
