Experts explain to CNN Portugal that for several months there have been no cases of this covid-19-related multisystem disease in children, a disease that, they say, can be fatal.
Vaccines against covid-19 and micron-mediated properties reduced the incidence of MIS-C in Portugal, a multisystem inflammatory disease associated with SARS-CoV-2 in children and increased cases during the Delta eruption. Specialists in pulmonology and pediatrics assure CNN Portugal that major cases of the disease are not seen in hospitals for several weeks, even with an increase in the incidence of the disease. generally even during the sixth wave.
Maria João Baptista, president of the Portuguese Association of Medical Cardiology and Cardiology at the Centro Hospitalar de São João, said there has been a “clear decrease” in the incidence of MIS-C in the country. a few months and in his group there were “no cases for several weeks”. This decline, he explained, is “gradual” and is not entirely the same as what happened in 2021, a year when 33 infected children were hospitalized, nine of whom were treated. intense.
Each time there is a new peak of covid-19 infection, it is “usually accompanied by an increase in the incidence of MIS-C,” however, according to Maria João Baptista, “the number of case of covid-19, with the end of the use of the mask having to be performed and with the easing of the restriction, this did not occur in the case of MIS-C ”.
This situation is consistent with a recent study conducted in Denmark and published on June 8 in the scientific journal JAMA Pediatrics. It specifies that the risk of children with MIS-C after infection with micron variants is “lower” than that of other species, such as Delta, and that the risk of multisystem disease is “lower in children” and young people who are vaccinated compared to those who have not been vaccinated ”.
“This is the main strength of this study,” said Manuel Magalhães, a pediatric psychiatrist at the Centro Materno Infantil do Norte and Hospital Lusíadas do Porto, who did not record any cases of MIS-C. for several weeks “. For doctors, the work in Denmark “clearly shows that the vaccine protects a lot against this MIS-C, one of the biggest diseases available”. “What this study shows is that those who are vaccinated have ten times more protection against MIS-C than those who are not vaccinated,” he asserted.
On the other hand, the study also shows that micron produces ten times higher MIS-C cases in unvaccinated children. This is because, as Maria João Baptista explains, there are “those who are less violent than those who are distracted”, who “are less likely to produce a very horrible response”.
The risk of recurrence of the disease has decreased
Doctors also confirmed that there is a lower risk of children developing MIS-C during covid-19 infection, because, “if there is a new infection in a child, the spread of the previous infection is makes the immune system. memory and makes the progression of the disease less so. “
In addition to the nature of micron and the campaign of the vaccine, there are other reasons why MIS-C seems to be slowing down in the country, says Dr. Manuel Magalhães, pointing to the evolution of natural immunity and “ seasonal variability of “environmental factors., such as temperature, sunlight and humidity that affect SARS-CoV-2 transmission”.
However, Maria João Baptista and Manuel Magalhães both guarantee that the potential for an increase in the incidence of MIS-C must be taken into account, as only one case is “very serious,” according to doctors at of the Maternity Center. Infantil in the North, and can produce “long -term outcomes for children we don’t yet know very well”.
Maria João Baptista also reminds us that MIS-C is a disease in which there is inflammation of various organs, “including the heart, lungs, kidneys, brain, skin, eyes and organs. digestion ”, which occurs in children and adolescents with the disease. to SARS. -CoV-2. Because it is not a common disease, says the president of the Portuguese Association of Pediatric Cardiology, “it affects less than 1% of children with covid-19,” it can be very dangerous and even fatal. aza. “The literature tells us that up to 70% of children with MIS-C may need intensive care, with a mortality rate between 1 and 2%,” said Maria João Baptista.