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EPA/Georgi Licovski One type of clinical study examines whether one dose is effective and sufficient to protect us from infection. In the case of AstraZeneca, the first dose of the vaccine has been shown to be 70 to 75 percent effective, so it can protect us from disease for a period of time. The second dose is given only after 12 weeks as a booster dose, but again more for preventive reasons, and in that sense, the effectiveness is increased by another 20 percent. Then, we have variants like the Sputnik Light vaccine, which is given in one dose and protects us in the next 3 to 6 months after the infection and after that, it is necessary to receive another dose of the vaccine , explained virologist Dr. Tanja Jovanovic for Television Prva.

South africaUnited kingdomSouth africanTanja jovanovicGeorgi licovskiTelevision prvaSputnik lightஒன்றுபட்டது கிஂக்டம்ட்யாஂஜா ஜொவானொவிக்ஸ்பட்நிக் ஒளி