From Witchcraft to World Health

able achievements action activities animals authorities became beginning blood body brought carried cause century changes chemical cities common continued countries cure death developed directed disease doctors drugs early effect Egyptians Empire environment epidemic established experience fact fever forms germs given Greek hands heart hospitals houses human important improvements industrial infection interest Italy keep knowledge land living magic man's means medicine methods moved natural observation operations organised organs passed patient person physicians plague poor population possible practice prevention primitive problems produced protect proved rational Roman scientific seemed showed sick skill slaves social soon spirits spread struggle suffered supply surgeon surgery taken theory thought thousands tion treating treatment whole workers wounds