A quarter of Delhi can fight Covid, but how well?
Delhi government and National Centre for Disease Control have planned to conduct a sample survey among people who recently underwent the serological survey in the capital.

Delhi government and National Centre for Disease Control have planned to conduct a sample survey among people who recently underwent the serological survey in the capital.
The assessment that this reflects the situation in April-end is based on the calculation that it takes up to two weeks for the infection to manifest itself.