â¢ Aged 50 and older who are at normal risk of developing colorectal. cancer; or. â¢ At high risk of developing colorectal cancer. âHigh risk for developing colorectal cancerâ is defined in the Code of Federal. NOTE: For coverage of screening colonoscopies, there is no age limitation.
Bd is a very important chytrid fungus because it appears to be capable of infecting most of the worldâs approximately 6,000 amphibian species and many of those species develop the disease chytridiomycosis which is linked to devastating population declines and species extinctions (Berger et al., 1998; Skerratt et al., 2007; Fisher et al., 2009).
Fungal pathogens affecting amphibians include the pathogenic fungus Batrachochytrium dendrobatidis (Bd), which has been has been implicated as the cause of significant population decline of amphibians in the Americas and Australia (Berger et al. 1998, Carey et al.verview of Amphibian Diseases. Disease has been implicated as a factor in the decline of amphibian populations worldwide (Blaustein et al. 1994b, Laurance et al. 1996, Berger et al. 1998, Daszak 2000, Kiesecker et al.