Is anyone aware of an infectious agent capable of re-activating herpes viruses in general and CMV in particular?
The agent must be capable of a respiratory phase of infection and show long-term cyclic time patterns of incidence. I suspect influenza can be ruled out. Likely to exist as different strains. Capable of causing a pneumonia-like illness.
Background research to the question available at www.hcaf.biz in the Emergency Admission web page.