Reported by CNN.
"As soon as we have a safe and effective vaccine, it should become free for everyone, regardless of the presence or absence of insurance," - quoted by TASS Biden.
He noted that it will be many months before any vaccine is widely available.
The Democrat stressed that if he wins the upcoming November elections, he will ensure the mass production of the drug.
Earlier, US President Donald Trump said the US would announce the readiness of its coronavirus vaccine within a few weeks.