Productive phage infections in which phage progeny are released in a manner that does not terminate the phage infection nor kill the host bacterium.
Chronic infections are not lysogenic infections, though the productive cycle for a small number of temperate phages is chronic rather than lytic.
The majority of phages that infect chronically possess filamentous virions, such as phage M13, which is the darling of phage display technologies.
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