"Living room" spread of Covid-19 now accounts for about 75 percent of the virus’s transmission, New York State Governor Andrew M. Cuomo said on Monday afternoon as he announced fine-tuned vaccination programs and precautions against the threat of a new Covid-19 strain spreading overseas. “Everything else is relatively de minimis” in terms of the risk of spreading the virus, he said, “and we’re in the heat of the holiday season.”