How much do the transport workers know about Covid and vaccines? TBS Report 30 September, 2021, 10:40 am Last modified: 30 September, 2021, 10:42 am Video of পরিবহণ শ্রমিকরা করোনা ও টিকা সম্পর্কে যা জানে- Transport worker's knowledge about Covid and vaccines Keep updated, follow The Business Standard's Google news channel transport workers / Covid -19