READ WHAT YOU SHOULD KNOW & DON'T KNOW ABOUT RUSSIA'S 'SPUTNIK V' VACCINE: DETAILS! 

Ever since Russia made headlines after announcing the world's first approved coronavirus vaccine for public use, it has raised eyebrows and questions on how quickly the vaccine has been registered. 

During the big announcement of the vaccine, President Vladimir Putin had also stated that his own daughter received it, but testing is yet to be completed. Before we proceed any further, here is what we know so far.

- What do we know about the Russian vaccine?: The vaccine was developed by the Moscow-based Gamaleya Institute, using funding from the Russian Direct Investment Fund (RDIF). The vaccine is named Sputnik V -- a reference to the 1957 Soviet Union satellite, accroding to CNN reports.

This vaccine has been conducted after months of human trials but is yet to publish data and did not begin the crucial Phase 3 stage. As per CNN report, Dr. Scott Gottlieb, former commissioner of the US Food and Drug Administration (FDA), said the number of people the vaccine had been tested on so far was the equivalent of a Phase 1 trial, which typically involves a small group and studies the safety of the vaccine.

- Is the Russian vaccine safe?: The answer to this is - 'we don't know' because Russia has not released any scientific data on its vaccine testing. So far, Russia claims that the vaccine has passed through Phase 1 and Phase 2 trials which were completed on August 1.

- Is the vaccine effective?: Experts and scientists are in doubt because Russia has not proven to the world if Sputnik V works. Also, there is no updated data or report on the complete Phase 3 trials. So far, Russia has said that its vaccine is an adenoviral vector one. However, according to the official website for the vaccine, Sputnik V's makers say that the vaccine induced a "strong antibody and cellular immune response," in trial volunteers. 

"Not a single participant of the current clinical trials got infected with Covid-19 after being administered with the vaccine," the statement adds.

- How did Russia pull this off so quickly?: In April 2020, Russia rolled out a law which eliminated the need for a Phase 3 vaccine trial before approval. To which, critics say that Russia's haste is partly due to political pressure from the Kremlin, which is keen to portray the country as a global scientific force.

- Who will get it first?: Russia's Health Ministry informed that the country's frontline medical staff and teachers will be the first to be vaccinated. Russia also plans to begin mass vaccination of citizens in October. 

- Which countries will take the vaccine?: There are many countries who have shown interest to try Sputnik V. Russia has so far received preliminary applications for over 1 billion doses of the vaccine from 20 countries.