Tuesday, October 26

Experts bet on the third dose when group immunity is reached


JOSÉ MARÍA LÓPEZ LOZANO, EPIDEMIOLOGIST: “Between vaccinated and people who have passed the covid, it is necessary to reach 90% so that the virus does not circulate”


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The experts consulted in the Alicante province are in favor of putting this reinforcement, primarily to elderly people, with serious illnesses and health personnel, the groups most vulnerable to the disease. However, a majority believe that before starting revaccination, it is necessary to make sure that group immunity is achieved so as not to give the opportunity to new variants of the covid that could circumvent the protection of vaccines. “Putting a booster dose would not be strange, in fact it happens with many vaccines, but first you have to do a massive injection until you reach, among vaccinated people and people who have had the disease, at least 90% of the population. This way the virus will circulate less and will not reach the most vulnerable “, says the epidemiologist José María López Lozano.

ESTHER CAPARRÓS, IMMUNOLOGIST: “Vaccines do not guarantee absolute protection, so a third dose is necessary”


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This specialist matches Jose Tuells, expert in Public Health from the University of Alicante, on the need also to increase vaccination in developing countries “for fairness and for not giving the opportunity to new variants.” Tuells believes that with the threat of Delta variant it is necessary to vaccinate above 85%, “and that is where all efforts must be concentrated before considering a third dose.”

JUAN FRANCISCO NAVARRO, SOCIEDAD VALENCIANA PREVENTIVE MEDICINE: “We must prioritize the elderly, health workers and people with serious illnesses”


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However, the infections that are occurring in people who have received the two doses of the vaccine, including the elderly, concern specialists such as Juan Francisco Navarro, president of the Valencian Society of Preventive Medicine, who believes that revaccination of the most vulnerable people should be done in autumn, before the cold starts and in order to prevent the level of antibodies that the vaccines provided has begun to drop. It should be remembered that the health workers and the elderly were the first to receive the serums, starting in December. «It is possible to advance in parallel, vaccinating more population and putting third doses to the elderly, immunosuppressed and health personnel ».

FÉLIX GUTIÉRREZ, HEAD OF INTERNAL MEDICINE HOSPITAL ELCHE: «We must monitor hospital pressure and, if it rises, we must resort to the third dose»


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In hospitals like General of Elche half of the people admitted these days have a dose of the vaccine or the complete regimen. For the head of Internal Medicine of the health center, Félix Gutiérrez, a third dose of the vaccine is something to consider “but we still do not have complete information to make the decision on when to do it”. For this specialist, the important thing, while the definitive evidence arrives, “is to advance in the immunization of the population without losing sight of the hospital pressure, and at the moment in which it rises with the admissions of vaccinated people, administer the third dose to the patients. most vulnerable ”.

The immunologist Esther Caparrós remember that vaccines do not guarantee absolute protection, “there is always a margin for infection, so a third dose will be fantastic to reinforce everything we have done so far”.

JOSÉ TUELLS, PUBLIC HEALTH SPECIALIST: “For now, all efforts must be concentrated on vaccinating those who are not yet vaccinated”


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The Ministry of Health does not at the moment consider starting to revaccinate the population against the coronavirus and they point out that the decision, in any case, corresponds to the Ministry of Health in coordination with the autonomous communities. Regarding the control that is being carried out on the protection of vaccines in the first groups to whom they were administered, nursing home residents, a report presented in June concluded that the protection offered by vaccines in nursing homes in the Valencian Community It is still very high, with 98.7% of people with antibodies 3 months after the second dose, a rate among the highest of those described so far.


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