(Reuters) - Russian reformist Yegor Gaidar has been released from hospital after treatment for an illness caused by an unknown toxic substance, his spokesman said on Tuesday.
"The doctors say the illness was likely caused by a toxic factor. But they cannot determine the nature of the substance, so they are refraining from using the term 'poisoning'," Valery Natarov said after receiving the doctors' final report.
"The doctors can't say that it is an ordinary illness."
He quoted the doctors as saying traces of a toxic substance could be detected no later than 48 hours after the illness, reports Trend.
Gaidar, acting prime minister under former President Boris Yeltsin and architect of market reforms, was taken to the Moscow hospital only 60 hours after he first felt unwell.
Natarov added Gaidar would continue treatment at home.
Gaidar, 50, now an influential academic, was taken to hospital shortly after the death of former KGB agent Alexander Litvinenko from radiation poisoning.
Litvinenko accused Russian President Vladimir Putin of killing him but the Kremlin has denied any link to the death.