Whether prionopathies that lack detectable PrPres in the brain are transmissible (a major feature of PrDs), needs to be determined, and transmission studies have been initiated involving one of our cases.
Most public health workers would presumably place cyanobacteria-related illnesses in the context of environmental exposures, as distinct from familiar diseases due to communicable infectious bacteria, which in many cases feature transmissible illnesses, secondary to the original reservoir of infection.
Such age specificity of disease risk may be a general feature of transmissible spongiform encephalopathies, which suggests that a general mechanism should be sought.
Moreover, a mobilization region orthologous to a mob gene in Streptococcus ferrus was found (SGGBAA2069_p00200), which is a necessary feature for transmissible plasmids and therefore promotes the ability for LGT transfer in presence of a helper conjugative plasmid.
However the sequence of the opd gene cluster in the self-transmissible pCMS1 showed no features of a transposable element (Pandeeti et al. 2011), and although a transposon-like organization was found in pPDL2, the opd cluster of pPDL2 has not been shown to be an active transposon (Siddavattam et al. 2003).
In the absence of these data, our analysis represents a new null model against which deviations within subtypes can be measured to identify strains that can provide additional information on the molecular features associated with transmissible phenotypes in ferrets and/or humans.
Histopathological examinations of brains from healthy pigs have revealed localised vacuolar changes, predominantly in the rostral colliculus, that are similar to the neuropil vacuolation featured in the transmissible spongiform encephalopathies and have been described in pigs challenged parenterally with the agent causing bovine spongiform encephalopathy (BSE).
The CaMV transmissible complex and the transmission body.
This feature contrasts sharply with other transmissible human diseases such as influenza or AIDS [25], [26].
Although the disease bears some of the classical features of the sporadic form of the human transmissible spongiform encephalopathies (TSE) or prion diseases, it has distinctive features [2] [4].
