| tracing the sars-coronavirus. | four coronaviruses (hcov-229e, hcov-oc43, hcov-nl63, hcov-hku1) are endemic in humans and mainly associated with mild respiratory illnesses; whereas the other two coronaviruses [severe acute respiratory syndrome coronavirus (sars-cov) and middle east respiratory syndrome coronavirus (mers-cov)] present as emerging infections causing severe respiratory syndrome. coronaviruses evolve by accumulation of point mutations and recombination of genomes among different strains or species. mammalian coron ... | 2013 | 23977431 |