Sputnik Light single-dose vaccine has been registered in Russia. This was announced by the Direct Investment Fund, together with the Ministry of Health and the Galameya Research Center. “Sputnik Light is the first component of the Sputnik V vaccine”, it is specified Sputnik V is composed of two doses with as many adenoviruses. Sputnik Light uses the first dose of Sputnik V as a single dose. No clarification on the effectiveness of the new vaccine.