In the midst of a debate on whether a fourth dose of the coronavirus vaccine is necessary for the entire population or only for the most vulnerable group of people and with the seventh wave at the gates of summer, a Spanish virologist has put another aspect on the table to analyze: have the current vaccines against covid been given correctly?
The Valencian researcher and virologist Luis Enjuanes considers that the vaccine does not have to be intramuscular, like those that have been given until now, through a puncture. He argues that it is “absolutely essential” to be vaccinated against Covid-19 intranasally, since intramuscularly it has a “short-lived immunity”, and that is the reason why a fourth dose is now necessary. . Intranasal vaccines are those that are not injected, but are administered through the nose and are very effective in dealing with respiratory viruses.
Enjuanes has trusted that the supply of the flu vaccine intranasally, in countries like the United States, “will do a lot” for the Covid-19 vaccine to be supplied in this way, although for now there are none of these licensed features. “We must bear in mind that the vaccines that have been given so far are given intramuscularly,” he explained, “and lose 99 percent of their effectiveness” because “it is a respiratory virus that enters through the nose” and ” if it were taken by the correct route we would gain in efficiency».
Enjuanes has related how, “simply administering them through the respiratory route would increase the efficiency by a hundred.”
In this sense, he has indicated that, in the most advanced countries, the flu vaccine is already being administered intranasally, and he has seen that this “will favor the approval of intranasal vaccines”, which is, has insisted, “absolutely essential, because if we don’t lose 99.9 percent of the power.”
Hence, he said, “people who have been vaccinated three times have to be vaccinated a fourth; because immunity in respiratory mucous membranes we only have one percent left ».
He added that the immunity we have received goes against the Alpha, Beta, Gamma and Delta variants that are different from the Omicron, and there are already several Omicron. The vaccines will have to be “dual” to protect against Omicron, but also against the previous ones.
To date, he has been “very grateful” for the fourth vaccination, although he has believed that it will have to be done “in an orderly manner”, because “immunity against Omicron is already low because it has changed a lot”, something to which the “short » immunity by supplying it intramuscularly.