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Coronavirus: a study concluded that the Sinopharm vaccine is safe and generates a strong immune response in boys from 3 to 17 years old


The data was published in the journal The Lancet Infectious Diseases. The specific effectiveness of the formula in boys is still unknown.

09/18/2021 2:27 PM

  • Clarí

  • Society

Updated 09/18/2021 2:27 PM

According to the results of the phase 1 and 2 trials of its development, the Sinopharm coronavirus vaccine was shown to be safe and to have generated a “

strong immune response

after two doses” 

in children between the ages of three and 17 years


This was published by the prestigious scientific journal

The Lancet Infectious Diseases

Its efficacy will only be evaluated in phase 3. However, Chinese scientists reported that the formula, formally called BBIBP-CorV

“is safe and well tolerated”

, and that “elicits strong humoral responses [generation of antibodies] against infection by SARS-CoV-2 after two doses ”.

In the

randomized, double-blind and controlled

phase 1 and 2 trial, reported in the scientific journal

The Lancet Infectious Diseases,

healthy volunteers were stratified by age.

The researchers divided into three groups, which were given different dosages of immunization:

  • From three to five years.

  • Six to 12.

  • From 13 to 17.

According to the researchers, the doses were administered

28 days apart


445 boys participated in phase 1, while 810 children were selected for phase 2.

When it comes to safety, the scientists said the

most common

adverse reaction


pain at the injection site

, followed by



In most cases, the severity of these effects "was mild to moderate," and they were "transitory or resolved within a few days."

“The inactivated covid-19 BBIBP-CorV vaccine

is safe and well tolerated at all levels tested in participants aged three to 17 years,

” the scientists stated, adding: “Adverse reactions occurred predominantly after the first dose and showed a frequency similar to what was evidenced in participants aged 18 to 59 and in those aged 60 and over ”.

Meanwhile, when evaluating its immunogenicity, that is, the ability of serum to induce an immune response, they stated that it "elicited

strong humoral responses against



after two doses."

They remarked that, although the efficacy of the vaccine is still unknown, the immune response induced by the serum in children between the ages of three and 17

is similar to that expressed in adults

, since “a seroconversion of 100% was achieved in all participants for day 56 ″.

In relation to phase 3 of the study, the scientists anticipated that for this age group it will

be carried out in the United Arab Emirates

, where the vaccines will be administered "21 days apart to obtain additional safety, immunogenicity and efficacy data."


Look also

The encouraging data from the WHO that marks the sustained decline in coronavirus cases

Nasal Covid Vaccine: Why It Raises Hope Among Scientists

Source: clarin

All life articles on 2021-09-18

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