The string of Covid vaccines in development has been in the spotlight for weeks. But drug firms are still doggedly plugging away in the background to make treatments for those who are struck down with the deadly virus – and AIM-listed Synairgen has been one of those firms. At the start of the pandemic the Southampton-based group quickly put forward one of its treatments – which patients inhale – that is usually used by those with chronic obstructive pulmonary disease or asthma. Drug makers are still doggedly plugging away in the background to make treatments for those who are struck down with Covid - and AIM-listed Synairgen has been one of these firms