How did Haryana minister become positive after taking Corona vaccine? Bharat Biotech gave clarification

Haryana Health and Home Minister Anil Vij, who was given the first dose in the clinical trial of Covaxin against Corona, has become Corona positive.  Now Bharat Biotech has issued a statement on this.  The company said that the covaxin clinical trial is based on two doses, to be given on the 28th day.  How much the vaccine is affected will be determined after 14 days of both doses.  Covaxin is designed to take two doses only after which it will be effective.
 The company stated that Phase 3 trials are double-blind and randomized, where 50% of the participants in the trial receive the vaccine and 50% of the subjects receive the placebo.  COVAXIN will be effective only after taking it twice at a difference of 28 days.  When the vaccine is taken twice, it will show the effect only after 14 days.

 The company further stated that it is a fully developed COVID-19 vaccine, with the cocaine tested in Phase 3 at 26,000 people.  Its goal is to be effective throughout India.  Bharat Biotech is a vaccine developer and manufacturer.  The company said that the safety and effectiveness of vaccines is our primary objective.  Bharat Biotech has conducted more than 80 clinical trials in 18 countries in its 20-year history.
 The same reporting procedure is followed for all clinical trials.  Bharat Biotech is one of the few companies doing human challenge studies at Oxford University, United Kingdom.