Source: South China Morning PostHow many vaccines does it take to tackle a pandemic? The answer so far looks to be 81 and counting.The Covid-19 disease this month passed a grim one-year anniversary since the World Health Organization declared it a pandemic, sparking an unprecedented drive to develop vaccines to combat this new coronavirus.According to the WHO, 81 potential vaccines for Covid-19 have entered or passed the human clinical development phase, from a total of around 260 in the pipeline. Most are being studied as…Read More