Even if vaccination with different shots for the first and second doses turned out to be more efficient than immunization with the same shots in some of the states, such a vaccination model is not used in Moldova as there is no such a recommendation from the World Health Organization, epidemiologist Angela Paraschiv was quoted by IPN as saying in a news conference.

The epidemiologist gave the example of Denmark in which some of the persons got a first dose of AstraZeneca and a second dose of Pfizer and the efficiency turned out to be six time higher than in the case of immunization with two shots of the same vaccine.

Angela Paraschiv reminded that the Delta variant of the novel coronavirus was confirmed in Moldova. “The Delta variant is much more contagious than the initial variants and spreads quickly and causes serious clinical forms, including development of pneumonia during a very short period of time. A recent study conducted in China showed that the incubation period of the Delta variant is three-four days, as opposed to six-seven days in the case of the original variant of the novel coronavirus. Concentrations of virus particles, or viral loads, in the airways of individuals recently infected with Delta were about 1,200 times greater,” stated the epidemiologist.

Another study carried out in Canada focused on over 200,000 COVID-19 cases and pointed to the growing virulence of the Delta variant. “Respectively, the risk of hospitalization of the persons infected with Delta rose by 120%, admissions to intensive care units by 287%, while the number of deaths associated with Delta by 137% compared with the original variants of the novel coronavirus,” stated the epidemiologist .

Angela Paraschiv called on the people to get vaccinated and to continue obeying the protection measures. The 535 national COVID vaccination centers provide such types of vaccine as Pfizer, AstraZeneca, Sinovac, Sinopharm and Johnson&Johnson.