Russia will clinically test the Sputnik-Light vaccine with a single-dose course, which is expected to provide countries with high rates of Covid-19 infection.
150 volunteers will give test shots at 3 medical facilities in the city of St. Petersburg and Moscow.
On January 11, Kirill Dmitriev, head of the Russian National Investment Fund (SWF), announced that it would keep the material for a two-dose submission to the Russian people, while Sputnik-Light was for export purposes. To date, more than a million Russians have been vaccinated with the Sputnik V vaccine.
“Sputnik-Light may be a temporary solution where many countries are experiencing a Covid-19 epidemic peak,” added Dmitriev.
President Vladimir Putin said Sputnik-Light produces less antibodies, but “is still 85% effective”, protective immunity can last 3-4 months.
When two doses are given, the Sputnik V vaccine is more than 91% effective.
Authorities in some countries are looking to expand the supply of Covid-19 vaccine, delay the second dose and reduce the dosage of the product. The aim is to maximize the number of people partially immune, thereby reducing serious infections and medical burden.
Gamaleya Research Institute develops the Sputnik V vaccine based on virus vector technology, with two doses given 21 days apart. The less stable production, the researchers found, resulted in an excess of the first injection.
In December 2020, Russia distributed 300,000 bottles of Sputnik-V vaccine to Argentina, but the entire shipment contained only the first dose.
The Sputnik V vaccine costs less than $ 10 per dose in the international market. Storage temperature is 2-8 degrees Celsius, which is higher than that of some other candidates.
Russia in August became the first country in the world to license the Covid-19 vaccine. President Vladimir Putin declared Sputnik V to create a stable immune system, although Phase Three has not yet been completed. Two months later, the country continued to license a second Covid-19 vaccine, called EpiVac Coronado, developed by the Vector Institute of Virology.
With 3,425,269 cases recorded, at least 62,273 deaths, Russia is currently the fourth-largest epidemic region in the world after the US, India and Brazil.
Le Hang (According to the Reuters)