As World Blood Donor Day is observed on Friday, medical experts have urged Nigerians to voluntarily donate blood to help save lives. They said a single donation could save three lives.

The phrase 'every drop counts' applies not just to water, but to another aspect of human life as well - blood donation. World Blood Donor Day (WBDD) is one of eight official global public health campaigns marked by the World Health Organization (WHO). It is aimed at raising awareness of the need for regular blood…