pestis forms a gel-like envelope around the cell. Production of this protein is crucial to pathogenicity which explains the lack of virulence in fleas whose average body temperature is closer to 25°C. Presence of antibodies for the F1 antigen is correlated with infection resistance in animals and may be comparable in humans (Perry and Fetherston,
pestis forms a gel-like envelope around the cell. Production of this protein is crucial to pathogenicity which explains the lack of virulence in fleas whose average body temperature is closer to 25°C. Presence of antibodies for the F1 antigen is correlated with infection resistance in animals and may be comparable in humans (Perry and Fetherston,