February 25, Kathmandu

US experts have claimed that a single shot vaccine against the coronavirus, developed by pharmaceutical company Johnson & Johnson, is safe and effective. The vaccine is expected to be approved in the United States in the next few days.

Earlier, Pfizer and Modern vaccines were approved in the United States. The Johnson & Johnson vaccine is said to be cheaper than the other two vaccines.

The vaccine has been shown to be safe and effective in clinical trials in the United States, South Africa and Brazil. The vaccine has even been used in South Africa. The vaccine is 85 percent effective against severe conditions. Under normal circumstances, the vaccine is claimed to be 65 percent safe.

The European Union alone has ordered 200 million doses of the vaccine, while the United Kingdom has ordered 30 million and Canada 35 million. The United Nations will provide 300 million doses to various countries through Covax.