We hear a lot about contact tracing and surveillance as a critical part of the response to COVID-19. But what exactly does it involve? We find out more from public health physician Dr Gunenthira Rao, who coordinates the district level response in one of the states.

<p>We hear a lot about contact tracing and surveillance as a critical part of the response to COVID-19. But what exactly does it involve? We find out more from public health physician Dr Gunenthira Rao, who coordinates the district level response in one of the states.</p>

Wander and be enlightened by the endlessly fascinating inner universe that is the human body. We speak with experts, Nobel laureates, cancer survivors and healthcare workers who share their unique perspectives on wellness and living and the latest medical research.

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