russia vaccine?

Common manifestations were reported as physical weakness or lack of energy, malaise, fever, decreased appetite, headaches, diarrhoea, nasal congestion, a sore throat, and runny nose.

https://www.dailymail.co.uk/news/article-8618707/Vladimir-Putins-coronavirus-vaccine-approved-tests-38-people.html?ito=social-facebook&fbclid=IwAR3c7DUyaRb81jgxVBGRi9NQhPiPByShrETOpxv-inWKzWAO0CwNR6WEU3M

question. there are ALOT, like ALOT of countries are trying to develop a vaccine without having any side effect etc. How true is the news of russian registering the first ever working vaccine tho? Any documents on testings or stuffs done?