Can dogs detect COVID-19?

Testing for COVID-19 is now more important than ever to avoid a second wave, sweeping local regions and whole countries in and out of lockdown. However, it has been widely acknowledged that mass testing regimes will play a key role in minimising the impact of the disease. As testing is proving challenging in some environments and even in some countries, are there other reliable methods which could prevent COVID-19 from spreading? Some dog behavioural experts believe the key could be in the form of our canine friends.