Covid: vaccination in adults is stagnating, according to Fiocruz – 05/19/2022 – Equilíbrio e Saúde

A Vaccination of adults against Covid-19 stagnates and compliance with the third dose is going through a slowdown, says Fiocruz in a new bulletin published this Thursday (19). The foundation says that this situation is concerning, mainly because vaccination is the main tool for controlling the pandemic in this period of suspension of the mandatory use of masks.

The foundation carried out analyzes on the vaccination against the coronavirus in the country and divided the membership in campaigns first and second doses in five phases. For the third dose, the establishment observed three periods of compliance.

In the case of the first dose, the best interval was from June to September 2021, where there was an average growth of 3% of applications each week. The worst period observed is the current one, which began in February and recorded an average increase of 0.3% per week. Although with some variations, the data from single doses or second doses resembles the pattern seen in early applications.

As for the third dose, the first phase had a slow growth and lasted until December. Then the second phase started with improvements in adherence (2.62% growth per week) that lasted until February. Since then, there has been a decline in adherence to booster vaccinations.

“The recommendation is therefore to pay particular attention to this indicator, because it compromises the advancement of complete vaccination coverage in the population”, specifies the foundation.

Another aspect of the alert concerns the elderly. It has been noticed that hospitalizations by Covid of this public are higher compared to adults under the age of 60. Fiocruz suggests that because this audience was vaccinated in early 2021, vaccine-induced immunity may decline over time, being extremely important the booster dose to avoid severe cases of the disease.

Another point addressed by Fiocruz is the vaccination of children from 5 to 11 years old. Coverage of this age group with two doses is approximately 32% nationally. However, the fact that the the vaccines were applied for about five months in minors makes the scenario “the biggest challenge” in evaluating the institution.

Vaccines and the fight against the pandemic

Vaccinations are essential for reduce severe cases of Covid-19 and also decrease the transmission of Sars-CoV-2.

This importance is reflected in the decrease in hospitalizations in ICUs (intensive care units) during the same period when the doses applied have increased. Moreover, the variant Omicron has caused an increase in the number of cases of the disease in the country at the beginning of the year, but the protection offered by the vaccines contributed to the fact that the mortality from the disease did not increase.

Data compiled by the institution in recent weeks confirm this perception: between April 24 and May 14, around 16,000 cases and 100 deaths were recorded. In this case, the lethality was around 0.7%, a number that is among “the lowest stable values ​​since the start of the pandemic”, explains Fiocruz.

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