• An aerial view of Old Faithful erupting taken from Observation Point with the Old Faithful Inn to the side.


    National Park ID,MT,WY

Class 2 Viral Agents

Adenoviruses - all types

Cache Valley virus

Corona viruses

Coxsackie A and B viruses


Echoviruses - all types

Encephalomyocarditis virus

Flanders virus

Hart Park virus

Hepatitis - associated antigen material

Herpes - Except herpesvirus simiae (monkey B virus) which is Class 4

Influenza - All types except A/PR8/34 which is Class 1

Langat virus

Lymphogranuloma venereum agent

Measles virus

Mumps virus

Parainfluenza virus - all types except Parainfluenza virus 3 SF4 strain which is in Class 1

Polioviruses - all types, wild and attenuated

Poxviruses - all types except Alastrim, Smal pox and White pox which are Class 5 and Monkey pox which depending on experiments is Class 3 or Class 4

Rabies virus - all strains except Rabies street virus which should be classified in Class 3

Reoviruses - all types

Respiratory syncytial virus

Rhinoviruses - all types

Rubella virus - (Except Heroesvirus simiae (Monkey B virus) which is in Class 4)

Simian viruses - all types except Hernesvirus simiae (Monkey B virus) and Marburg virus which are in Class 4

Sindbis virus

Tensaw virus

Turlock virus

Vaccinia virus

Varicella virus

Vesicular stomatitis virus

Vole rickettsia

Yellow fever virus 17D Vaccine strain

Did You Know?

Yellowstone Wolf.

There were no wolves in Yellowstone in 1994. The wolves that were reintroduced in 1995 and 1996 thrived and there are now over 300 of their descendents living in the Greater Yellowstone Area.