Covid-19: Soon a vaccine in nasal spray form?

Study – Seven vaccines against COVID-19 in nasal spray form, and therefore do not require injection, are currently in clinical trials around the world. According to the journal Science, their first results are promising.

The COVID-19 vaccines currently in use around the world, whether messenger RNA or not, American, Chinese or Russian, are similar in that they all require intramuscular injection. In other words: a sting in the hand. Those who are afraid of needles are afraid of this sting, can it be replaced in some other way in the future? Seven out of a hundred anti-Covid vaccines currently in clinical trials, in the first phase of clinical trials, are delivered via the nasal route, reports an article published in the Journal a few days ago. Science, viewed by daily Alsace. latest news from.

No more syringes: Developed in the United States, India, the United Kingdom, or Cuba, these vaccines are administered as a spray. A method that has many advantages, according to the article Science.

all information on

Covid-19: The challenge of vaccination

The nose is one of the main entry points of the virus into the body, so a nasal spray will help fight off the virus as quickly as possible. The first results obtained show a powerful immune response at the site of the spray, thanks to the presence of antibodies directly in the nose. as reported Alsace. latest news fromThese antibodies will not only speed up healing, attack the virus as soon as it enters the body and thus reduce viral replication, but also prevent infection in some cases.

One way to “promote” intramuscular vaccines?

However, according to earlier trials, intranasal vaccines again lack to confer immunity against COVID-19, which is induced by “classic” or intramuscular vaccination. “Intranasal vaccines may need to target local immunity in the respiratory tract and balance the longevity of systemic immunity“, write the authors of the article published in Science. Therefore suggest a combination of intramuscular vaccination and intranasal vaccination for maximum efficiency, with the latter also being able to serve”booster“The first one.

In early June, this is an article in the magazine nature who have already reported encouraging results in rats, in which administration of a nasal spray resulted in a reduction in the presence of the virus after only two days.

read also

In France, the University of Tours-INRAE ​​has been working on a nasal spray since last summer. In its injection, it will be possible to vaccinate more and more people in a marketing situation.

on the same subject

The Most Read Articles

COVID-19: Should we isolate ourselves if we are declared a “contact case” and fully vaccinated?

Vaccinations: “There is now a link between hospitalization and diagnosis,” says Olivier Veran

Live – Covid-19: “Get vaccinated for yourself and for France”, inspires Macron with papaya

While France is “late”, the United Kingdom has caught on to the protracted Covid problem

Tokyo Olympics medal tally: France ranks 8th behind rowing gold

logo lci
Defends the ambition of information
freehandjob
verified and accessible to all thanks to the income of
Publicity .

You can “change your preferences” and accept all cookies to help us maintain this free service.

Leave a Reply

Your email address will not be published. Required fields are marked *