विश्व स्वास्थ्य संगठन के अनुसार इन तरीको से करें ऑक्सीजन लेवल की जांच, मिलेंगे
World Health Organisation approved two new drugs for the treatment of covid-19 patients.
Omicron variant spotted in countries, WHO asks to be more vigilant as the experts
An advisory group to the World Health Organization (WHO) recommended people with weaker immune
Lifting restrictions too early can be dangerous for those who are not vaccinated.