At least 32. 2 percent of people in the world are fully vaccinated against the deadly coronavirus and 44 percent have received at least one shot of vaccine in total. Being vaccinated does not mean that we can throw caution to the wind and put ourselves and others at risk, particularly because research is still ongoing into how much vaccines protect not only against disease but also against infection and transmission.
As per the latest report by the World Health Organization, there are 7 vaccines approved by the WHO. Here is a look at those vaccines and the number of countries that approved them to use in the country:
- Oxford/AstraZeneca (AZD1222): 121 countries have given the approval to use the vaccine in their respective countries and 2 countries are under trial. It is developed in the United Kingdom by the Oxford University and British-Swedish company AstraZeneca. The AZD1222 vaccine against COVID-19 has an efficacy of 63.09% against symptomatic SARS-CoV-2 infection. Longer dose intervals within the 8 to 12 weeks range are associated with greater vaccine efficacy.
- Pfizer/BioNTech(BNT162b2): 99 countries have approved the vaccine which was developed by the German-American duo- German biotechnology company BioNTech and for its development collaborated with the American company, Pfizer. America itself approved the vaccine in the early-stage and the vaccine has a demand in many countries.
- Moderna(mRNA-1273): The third place is the Moderna vaccine and is the vaccine sold under the brand name Spikevax, developed by American company Moderna, the United StatesNational Institute of Allergy, and Infectious Diseases, and the Biomedical Advanced Research and Development Authority. The vaccine got its approval in 72 countries in total.
- Janssen(Johnson & Johnson) Ad26.COV2.S: It was developed by Janssen Vaccines in Leiden, the Netherlands, and its Belgian parent company Janssen Pharmaceuticals subsidiary of American company Johnson & Johnson. 65 countries approved the vaccine to use.
- Sinopharm, BBIBP-CorV: The vaccine developed by a Chinese company has been approved in 64 countries and 11 trials done in 4 countries. Along with that China has already exported the vaccine to many countries.
- Covishield(Oxford/Astrazeneca formation): Serum Institute of India’s COVID-19 vaccine, is a version of the Oxford-AstraZeneca vaccine that manufacturers in India produce locally. According to AstraZeneca’s primary analysis of phase 3 trial data, the vaccine has a 76% efficacy rate after both doses. Total 45 countries approved the vaccines. However, the vaccine had not got the recognition by Britain under the new rule despite being identical to the doses given to millions of Britons. Later the vaccine recieved its approval to use in Britain.
- Sinovac(Coronavac): The last in the list is the Sinovac vaccine developed by a Chinese company. The vaccine got approval to use in 40 countries till now. It was Phase 3 clinical trialed in Brazil, Chile, Indonesia, the Philippines, and Turkey and relies on traditional technology similar to BBIBP-CorV and Covaxin, other inactivated-virus COVID-19 vaccines.