title: Influence of the physical state of formalinized vaccinia virus particles on surviving plaque titer: evidence for multiplicity reactivation.
mesh_terms: D002498:Centrifugation; D005557:Formaldehyde; D014465:Ultrasonics; D014616:Vaccinia virus / Q000276:immunology*; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines; D005557:Formaldehyde