Expert Warns Against Attenuated Virus COVID-19 Vaccines as China Leads Development

The Chinese vaccines are the safest since they are based on an "old-fashioned" technology that consists of using inactivated viruses to arm the body with the necessary immunity, Professor Axel Kahn had affirmed. This is also the option chosen by Morocco by opting for the Chinese vaccine. But this choice is not to the liking of all the scientists concerned by the issue, reports Consonews.

The Moroccan Abdeljabar El Andaloussi, a research professor in immunology and infectious diseases at the University of Illinois in Chicago, indicating "that we must avoid any vaccine based on attenuated virus", has openly cited the Chinese vaccine Sinopharm, "but also Pfizer, based on attenuated vaccine". His argument is based on three major reasons, reports Maroc Hebdo. "First, because the virus is non-immunogenic in all treated and cured patients. Then, given the observation of vaccinated volunteers developing the symptoms of the disease, which means that the vaccine received by these people has a defect in attenuation. And finally, given the doubtful origin of the virus, in addition to its very complicated structure to understand and the sequence homologies with other viruses".

As a result, he advises "to rather give time to the ongoing clinical trials and wait at least a year for the follow-up of the health status of the volunteers and let go of this rage of massive and mandatory vaccination".

He did not fail to point out that the United States has just announced the recruitment of volunteers with poor health to participate in the ongoing clinical study in exchange for an allocation of $1,220. This proves "that we are not yet out of the clinical studies and that people are hesitant about vaccination against Covid-19," he concluded.