Changes

**Bacteria can survive intracellularly, avoiding the immune system and antimicrobials

**Bacteria can survive intracellularly, avoiding the immune system and antimicrobials

**May have latent carriage and intermittent excretion in faeces

**May have latent carriage and intermittent excretion in faeces

**Stresses e.g. transportaion, illness, parturition, overcrowding promote excretion in carrier animals and may cause clinical signs to be shown

**Stresses e.g. transportation, illness, parturition, overcrowding promote excretion in carrier animals and may cause clinical signs to be shown

**Tortoises, terrapins, snakes and other reptiles ofter carry ''Salmonellae''

**Tortoises, terrapins, snakes and other reptiles ofter carry ''Salmonellae''

**Asymptomatic carriage allows faecal spread of infection

**Asymptomatic carriage allows faecal spread of infection