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MOSCOW – A small preliminary laboratory
study has shown that levels of Omicron-neutralizing antibodies
of people vaccinated with Russia’s Sputnik V vaccine did not
decline as much as of those who had Pfizer shots.
The joint Russian-Italian study – funded by the Russian
Direct Investment Fund, which markets Sputnik V abroad –
compared the blood serum of people who had received the
different vaccines.
The preliminary study was conducted by scientists from the
Spallanzani Institute in Italy and Gamaleya Institute in Moscow,
the developer of Sputnik V vaccine.
Researchers said samples taken three to six months after the
second dose of a vaccine have shown that the levels of
antibodies in recipients of two doses of Sputnik V were more
resistant to Omicron than in those vaccinated with Pfizer.
It included 51 people vaccinated with Sputnik V and 17
after two shots of the Pfizer vaccine.
“Today the necessity of third booster vaccination is
obvious,” the preliminary study published on Jan. 19 said.
The study, that will seek certification by peer review,
showed that Omicron-specific neutralizing antibodies were
detected in the blood serum of 74.2% of the people vaccinated
with Sputnik and in 56.9% of those vaccinated with
Pfizer/BioNtech.
An earlier preliminary study by the Gamaleya Institute, the
developer of Sputnik V, showed that a booster shot of Sputnik
Light vaccine provided a stronger antibody response against
Omicron than the two-dose Sputnik V vaccine alone.
“Partnership of different platforms is the key…boosting
with Sputnik Light will help strengthen efficacy of other
vaccines in light of combined Delta and Omicron challenge,” the
head of RDIF Kirill Dmitriev said in a statement.
Omicron has pushed COVID-19 case figures to record highs in
parts of western Europe and the United States. But the variant
has only now began to hit Russia, where the daily nationwide new
infections spiked to 38,850 on Tuesday from 33,899 the day
before.
Russia has so far officially recorded more than 1,600 cases
of the variant and has mobilized its health system to tackle an
increase in cases but authorities said they realized that there
are many more cases related to Omicron. –Reporting by Polina Nikolskaya, additional reporting by Emilio Parodi in Milan, editing by Gabrielle Tétrault-Farber and Tomasz Janowski
Sputnik V shows higher Omicron-antibody levels than Pfizer in preliminary study
Source: Filipino Trend Viral
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