NEW YORK (GZERO MEDIA) - US President Joe Biden's initial goal of administering 100 million doses of the Covid-19 vaccine over 100 days is well on track, but experts question if the goal is ambitious enough, says American political scientist Ian Bremmer.

With less than 10 per cent of the population in the United States inoculated, far below the World Health Organisation's reported 70 per cent required for herd immunity, the distribution of vaccines has been slow and often disorganised.

There is also the additional problem of coordinating how the vaccines travel from loading docks to distribution centres, an issue the Biden administration says the Trump team failed to focus on, leaving states to figure it out on their own.

Vaccine scepticism is also present, with far more Democrats willing to get vaccinated than Republicans. The hesitancy is also higher among people of colour - the same groups most likely to become severely ill or die from Covid-19.

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