India has been reporting the highest number of daily cases globally since August 7
Some trial sites are still waiting for approval while the others said they would complete Phase 1 trials by August 15
The pharma company said the photo shows a routine blood check undergone by a member of the production team.
The vaccine is a collaboration between Hyderabad-based Bharat Biotech and the National Institute of Virology
The WHO has said there are 17 vaccine candidates currently in the human trial stage