Putin did not specify which types of cancer the proposed vaccines would target nor how.
Putin told US talk-show host Tucker Carlson last week that Russia was ready for "dialogue."
“If Hitler didn’t kill me for being a Jew, then Putin would kill me for being a Ukrainian.”
Putin, 71, who has chosen to run as an independent rather than as the candidate of the ruling United Russia party and who has been Russia's paramount leader since 2000.
Russian media showed pictures of Carlson at several spots around Moscow on Monday, fueling speculation that the former Fox News host may be there to interview Vladimir Putin.
WASHINGTON WATCH: It would be easy to chalk this up to this dysfunctional Congress’s aversion to bipartisanship, but the reality is this is a result of internecine warfare in the GOP.
Local governor Vyacheslav Gladkov said that an unspecified "incident" had occurred in the region's Korochansky district, northeast of Belgorod city, and that he was going to inspect the site.