Appendix A 
Fungal Agents 
Actinomycetes are bacteria, not fungi, and include numerous general 
and an extraordinary number of species, the vast majority of which are 
non- pathogenic (1). For instance, Bergey's Manual of Determinative 
Bacteriology (1) describes 416 species and 47 subspecies of Strepto - 
myces , while only four species are considered human pathogens (2) to 
avoid inadvertent classification of harmless Streptomyces and other 
harmless Actinomycetes of therapeutic and economic importance as 
Class 2 Agents, we suggest that only the pathogenic Actinomycetes be 
listed as Class 2 Bacterial Agents. Below is a summary of pathogenic 
Actinomycetes l isted in references 2, 3 and 4: 
Actinomyces eriksonii 
Actinomyces israelii 
Actinomyces bovis (bovine pathogen) 
Actinomyces naeslundii 
Actinomyces odontolvticus 
Actinomyces suis (swine pathogen) 
Actinomyces viscosus 
Arachnia propionica 
Derma tophilus congolensis 
Nocardia asteroides 
Nocardia brasiliensis 
Nocardia caviae 
Streptomyces niadurae 
Streptomyces pelletierii 
Streptomyces paraguayensis 
Streptomyces somaliensis 
[Appendix A — 68] 
