When a sample sent to the referral laboratory in the capital Algiers gave a positive result, the Ministry of Health announced Algeria’s first COVID-19 case on 26 February, becoming the second African country to confirm the virus. Since then, dozens of people have caught the infection. Unlike years past, it now takes just two hours to analyse such specimen. In addition to speed, the laboratory is also striving to ensure testing integrity – an important cog in the efforts to halt the spread of COVID-19.