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The Democrats' push for President Biden to loosen vaccine patents so every country can produce their own vaccine has created an "international fight" for "vaccine diplomacy", according to Sky News Washington Correspondent Annelise Nielsen.

"They want to see all this technology all around the world so countries can start their own local production to try and counter this COVID-19 pandemic from the developing countries - which as we've seen in India has become the real battleground in this pandemic," she told Sky News host Andrew Bolt.

"In a broader picture this has become an international fight for vaccine diplomacy - Australia is engaging in this as well through the quad alliance.

"And it's because China has become the really big player in this - they're producing billions of vaccinations.

"But the advantage that China has here is that they have a hand in every single pharmaceutical company which are geared up to do this.

"The argument coming from pretty powerful players in the US, including Bill Gates, has been that there shouldn't be a compromise in the intellectual property of pharmaceutical giants - that this could set a very dangerous precedent - especially to force their hand."