1994k-746 africa amp;fitness animalexperimentation animals besmetting biologicalsciences communicablediseases contagious disease ebola ebola-virus ebolavirus ebolavirusdisease epidemias epidemiology health healthissues hemorrhagicfever humandisease infectiousdiseases krankheit laboratory largetypebooks literarycollections marburgvirusdisease medical molecularvirology monkeydiseases newyorktimesbestseller nutrition nyt:health=2014-10-12 popularworks primatesaslaboratoryanimals primatescomoanimalesdelaboratorio reston socialsciences sociology sociologyofhealth verbreitung virginia virusdiseases wc500p939h1994