He said though there was a "ray of hope", certain issues he had flagged remained unresolved.
A top leader of the ruling Communist Party has asked China's over 25 million Muslims to "uphold the banner of patriotism" and reorient Islam to adapt to Chinese conditions, amid Beijing's diplomatic offensive to counter a damning UN report accusing it of serious human rights violations against Uygur Muslims.
The modus operandi for immunising the country's 1.35 billion population in stages has been thrashed out in more than one meeting among top government officials in the health ministry and the Prime Minister's Office.
The remarks by Naidu in his last address as the country's Vice President came even as Telangana's ruling Telangana Rashtra Samithi RS said the welfare of poorer sections of society is not a freebie and that welfare measures taken by governments should continue.