COVID 2.0 Hits Assam's Tea Gardens, 90 Workers Test Positive The garden hospital and the two vacant staff quarters have been turned into temporary isolation centres for the positive patients | 6 May 2021 9:13 AM GMT Dibrugarh: COVID-19 has now reached the tea gardens of Assam. Tea industry is one of the largest revenue earners of the state. According to reports, around 90 tea garden workers and staff of Zaloni tea estate in Dibrugarh have tested positive for the deadly virus. A source involved in the testing of the samples said that close to 150 people may have contracted the virus. The Dibrugarh district administration has shut down the Zaloni tea estate which falls under Tengakhat revenue circle.