Tobacco plants are being used in the development of COVID-19 vaccines. One is already being tested in humans.

BANDARBAN, BANGLADESH – JANUARY 22: Tobacco field seen near the Matamuhuri River at Lama on January 22, 2019 in Bandarban, Bangladesh. Tobacco farming is rapidly increasing in Bangladesh. According to official data for 2016, tobacco is grown on 46,472 hectares of land, producing 87,628 tons of tobacco leaf. The country ranks 14th for area under tobacco, 12th for production in quantity, and has a share of 1.3% of global tobacco production (FAOSTAT 2018). Tobacco farming is damaging the environment, reducing soil fertility and occupying more and plain lands earlier used for growing rice and other crops. However, around 40000 tonnes of firewood are burnt in about 2000 tobacco processing kilns a year, depleting natural forests, according to environmentalists. PHOTOGRAPH BY Rehman Asad/Barcroft Media via Getty Images (Photo credit should read REHMAN ASAD / Barcroft Media via Getty Images)