Select the FALSE Statement Regarding Legionellosis and Its Causative Agent

Select the FALSE statement regarding legionellosis and its causative agent.

A) The causative organism survives well in the water systems of buildings, particularly in hot water systems, where chlorine levels are generally low.
B) People become infected with L. pneumophila when they inhale aerosol droplets contaminated with the organism. It is not acquired from other infected individuals.
C) L. pneumophila produces a β-lactamase, which makes it resistant to many penicillins and some cephalosporins, so is typically treated with a macrolide or a fluoroquinolone.
D) Legionella pneumophila is an obligate intracellular parasite that survives in ameba in the environment and in kupffer cells in infected people.
E) L. pneumophila prevents phagosome-lysosome fusion in phagocytes, thus avoiding destruction; the bacteria manipulate conditions to multiply within these cells.