What are the symptoms of the Delta COVID-19 variant?

The more transmissible Delta COVID-19 variant has delayed reopening plans in the United Kingdom and raised concern in Canada, as cases have been identified in all 10 provinces and one territory. The Delta variant or sub-lineage, which was first discovered in India late last year, was recently classified as a variant of concern in Canada. The first cases were detected in the country back in April and have since been rising. As Eric Sorensen reports, some British researchers say the variant symptoms are looking like a “bad flu” in younger people, with the number one symptom being headache.