Another interesting article from the CDC
This is the conclusion of their investigation into this emerging bacterial infection... Sound familiar? The bacteria replicates itself in the human host? Maybe this is what the CDC has found out about M and doesn't want to panic the public?
CDC
http://www.cdc.gov/ncidod/eid/vol12no10/pdfs/06-0464.pdf
P. asymbiotica is not the first bacterial symbiont of
nematodes to be associated with human disease.
Wolbachia, an intracellular bacterial symbiont of the
nematodes Onchocerca volvulus and Brugia malayi, has
been implicated in the pathogenesis of 2 major human
infectious diseases, river blindness and lymphatic filariasis
(15). However, unlike Wolbachia, P. asymbiotica appears
to actively reproduce in its human host. O. volvulus and B.
malayi nematodes are borne by an insect vector. The
insect-pathogenic nematode bearing P. asymbiotica does
not appear to have been borne by an insect vector. Whether
this nematode is able to penetrate intact human skin is
unclear, although direct skin penetration by nematodes is
well recognized (e.g., hookworm, Strongyloides stercoralis).
Although the patient described here had a history of
minor skin trauma, previous case reports suggest infection
beginning in uninjured skin.
With continued population growth and movement,
changes in human behavior, and changes in the environment,
new human infectious diseases can be expected to
continue to cross the species barrier. Given the dominance
of invertebrate animal species in the biosphere, more
invertebrate pathogens will likely emerge as agents of
human infection.