Sliding out of their rickshaw, masks on, fresh sanitizer smeared across their hands, a team of health workers approached one of the mud-walled homes in Masli, a remote village in northeast India surrounded by miles of mountainous rainforest.

"Are you Amit Deb?” they asked a lean, shirtless man standing in his yard. Deb nodded cautiously. Five days earlier, he had tested positive for the coronavirus. Now his family members needed to be tested.

They all refused.