1.      Mycoplasma pulmonis

7.      Hantavirus

2.      LCMV (Lymphocytic choriomeningtitis virus)

8.      Reo 3 (Reovirus 3)

3.      PVM (Pneumonia virus of mice)

9.      MAd (Mouse adenovirus)

4.      Sendai virus

10.   MHV (Mouse hepatitis virus)

5.      GD-7 (Theiler's murine encephalomyelitis virus)

11.    MPV (Mouse parvovirus)

6.      Ectromelia virus

12.    MVM (Minute virus of mice)