Health workers Kamla Devi, 58, and Kanta Devi, 26, trek through the mountains to vaccinate people in remote villages during a vaccination drive against the coronavirus disease (COVID-19) outbreak, near Malana village in Kullu district in the Himalayan state of Himachal Pradesh, India, September 14, 2021. Despite the hostile terrain, the northern state of Himachal Pradesh became the first in India to administer at least one COVID-19 vaccine dose in all its adults. The steep topography was a challenge overcome by health workers walking for hours or days to reach remote villages. REUTERS/Adnan Abidi SEARCH "REMOTE VILLAGERS VACCINE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY