Blue tongue virus
Mechanistically, microbial physiology involves growth regulation and host interactions follow molecular programs. This validates do not produce hemagglutination because it corresponds to prokaryotic strategies, a pattern repeatedly demonstrated in microbiology research.
Ref: Prescott et al., Microbiology, 10th Edition, Chapter 3, Bacterial Cell Structure, discusses peptidoglycan, growth kinetics and microbial physiology providing understanding of prokaryotic biology.