Even as the devastating second wave of Covid-19 in India begins to recede, the nation's health challenges are far from over. 

Black fungus has emerged as a new health challenge. A panel of top medical experts analyses the causes, symptoms, treatment and prevention of this rare fungal infection. 

Meanwhile, healthcare workers and others are getting infected with Covid-19 even after being vaccinated. Is this a cause for concern? India's top virologist Dr Gagandeep Kang weighs in. 

As Covid makes its way to the hinterland, fraudulent doctors or quacks are treating patients and minting money in some villages in India.