Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization (WHO), has expressed his concern saying that vaccines are now giving a window of opportunity to bring the Covid-19 pandemic under control, but they may also exacerbate the inequalities in distribution across the globe. At a press briefing on Friday, Chief urged that the world not to squander another window of opportunity to curb the pandemic. 

He said, "A year ago, I said the world had a 'window of opportunity' to prevent widespread transmission of this new virus". He remembered a time period when there were fewer than 100 Covid-19 cases and no deaths outside China. Tedros followed his comment saying, "This week, we reached 100 million reported cases. More cases have been reported in the past two weeks than during the first six months of the pandemic. Vaccine nationalism might serve short-term political goals. But it's ultimately short-sighted and self-defeating. Vaccine nationalism might serve short-term political goals. But it's ultimately short-sighted and self-defeating". 

But due to the fact that vaccine are a limited resource, WHO called for the effective and fair use. "That's why I have challenged government and industry leaders to work together to ensure that in the first 100 days of 2021, vaccination of health workers and older people is underway in all countries," Tedros said. He also appealed the countries that are vaccinating now to share doses. 

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