Dr. Brajpal Singh Tyagi, left, performs surgery to remove mucormycosis, a rare and potentially deadly infection also known as black fungus, from a patient in Ghaziabad, India, on June 1. In the past few weeks, thousands of black fungus cases have been reported across the country, with hundreds hospitalized and dozens dead. Many of those being infected are coronavirus patients or those who have recently recovered from Covid-19 and have weakened immune systems.
Prakash Singh/AFP/Getty Images

In pictures: The coronavirus pandemic

Updated 0006 GMT (0806 HKT) June 7, 2021

Dr. Brajpal Singh Tyagi, left, performs surgery to remove mucormycosis, a rare and potentially deadly infection also known as black fungus, from a patient in Ghaziabad, India, on June 1. In the past few weeks, thousands of black fungus cases have been reported across the country, with hundreds hospitalized and dozens dead. Many of those being infected are coronavirus patients or those who have recently recovered from Covid-19 and have weakened immune systems.
Prakash Singh/AFP/Getty Images

Our world has been turned upside down by the Covid-19 pandemic, which is now in its second year.

As of June 2, there have been more than 171 million cases reported. More than 3.6 million people have died.

Covid-19 was first reported in Wuhan, a city of 11 million people in central China's Hubei province. It has since spread to every continent, devastating economies and changing the way we live our daily lives. The "new normal" for many of us includes face masks and social distancing.

Hope is on the way, in the form of vaccines. But many are still waiting.

Interactive: Tracking Covid-19's global spread