Cowdry type A inclusion bodies are characteristic of

Cytology and Histology: In some instances, viruses produce specific cytologic changes in infected host tissues that aid in diagnosis. Examples include specific intranuclear inclusions seen in neuronal infections due to herpes simplex (Cowdry type A-bodies) and due to intracytoplasmic inclusions in rabies (Negri bodies), and cell fusion, which results in multinucleated epithelial giant cells (eg, measles and varicella zoster).Ref: Sherris microbiology; 6th edition; Page no: 69