How Do Bacteria Enter A Bacteria?

The bacteria enter a host via portals such as damaged skin, certain mucous membranes, the lungs and conjunctival membranes. They are not thought capable of penetrating undamaged skin except where it has been exposed to water and has swollen significantly. Transfer to the portal requires the bacteria to be enveloped in water and so normally involves direct contact with urine or water containing the bacteria in suspension. Entry via the lungs requires inhalation of aerosol droplets and not the bacteria alone. Leptospires cannot exist as spores or reactivate once dessicated in the natural environment.

Once within the host tissues, pathogenic strains can reproduce as they are optimised for metabolism at body temperatures. Their survival depends