Can you be re-infected with COVID-19? What is the risk of a second wave of the virus? Why are there such mixed messages on the effectiveness of using face masks? Professor Heidi Larson and Professor Jimmy Whitworth provide expert ansers to these questions and more...

In this conversation with TEDMED Foundation Director, Jay Walker, Peter Piot provides solid scientific knowledge about COVID-19 and how to cope with the vastness of the current pandemic.

The spread of stigma is giving coronavirus a helping hand.

In the final weeks of 2019, a virus slipped furtively from animal to human somewhere in the Chinese city of Wuhan. This inauspicious moment marked the sounding of a starting pistol, unheard at first but now echoing deafeningly across the globe. The race to stop a pandemic had begun.

Climate change is not just a matter of melting ice caps and baking heat - it is also a major threat to our health. And it is a threat that will have far-reaching impacts for our children and for all future generations.

Globally, malaria deaths halved between 2000 and 2015. This was primarily achieved through the mass distribution of insecticide-treated bed nets. However, according to the most recent World Health Organization global report mosquitoes have developed resistance to the four main classes of insecticides commonly used for their control across all WHO regions with ongoing malaria transmission.

The impact of violence against women is considerable. Women often have low self-esteem and low self-confidence. They feel inferior to others in their community, including their own children, who witness them being beaten by their partner. Other women feel angry and have vented their anger on their children. But talking about violence has given women hope that things can change.

Toilets are more than a household necessity - they save lives, protect dignity and create economic opportunity. However, some half a billion people on the planet are still waiting for the toilet. World Toilet Day’s “Leave no one behind” theme emphasises the importance of expanding sanitation access to all people having to live without safely managed sanitation.

Disease outbreak forecasting, like weather or commodity market forecasting, can be a powerful tool that makes our lives easier. Knowing the magnitude and timing of an outbreak helps public health decision makers plan interventions on many levels, from vaccination campaigns to human resource allocation at hospitals.

Current treatments are able to cure hepatitis C at a relatively low cost to the NHS. This provides a great opportunity to find and treat those currently infected, curing the infection before the onset of liver failure or liver cancer. Testing is currently offered to those who are identified as being at high risk of infection. However, the way in which testing is provided needs to change in order to increase the number of people diagnosed and receiving treatment. Testing needs to be expanded to reach more people that it currently does.