The National Blood Service, Ghana (NBSG) has recorded a 21 per cent decline in total blood collections and supply per last year's record for January to May.Dr Justina Ansah, the Chief Executive Officer of the National Blood Service, who attributed the situation to the COVID-19 crisis, explained that the total units of blood collected for the first five months of last year was 73,063.However, this declined to 57,268 for this year.