China has become Russia’s biggest scientific collaborator following Moscow’s invasion of Ukraine, largely because ties to the west have dramatically shrunk since the war began.
Since leaving the USSR in 1990, the Moscow-born oncologist Andrei Gudkov has acted as something of a bridge between US and Russian science. A professor at the Roswell Park Comprehensive Cancer Center in New York state, he has for three decades carried out joint research projects with Russian cancer centres, organised symposia in Russia, reviewed grant proposals for Russian scientists, and accepted numerous visiting scholars to his lab.