Recent evidence suggests that nonpathogenic strains of " H . pylori " may be beneficial, e . g ., by normalizing stomach acid secretion,
22.
Until recently the placenta was considered to be a sterile organ but commensal, nonpathogenic bacterial species and genera have been identified that reside in the placental tissue.
23.
""'Mycobacterium vaccae " "'is a nonpathogenic species of the Mycobacteriaceae family of depression, leprosy, psoriasis, dermatitis, eczema and tuberculosis.
24.
Named for Otto B�tschli by Prowazek in 1912, " Iodamoeba b�tschlii " is a nonpathogenic parasitic ameba, commonly found in the large intestines of people, pigs and other mammals.
25.
It is endemic in cattle populations worldwide, and although normally fairly nonpathogenic, it can cause reproductive, respiratory, or enteric disease particularly when the animal is concurrently infected with another pathogen.
26.
Presented with the wide-ranging occurrence of " "'F . oxysporum " "'strains that are nonpathogenic, it is reasonable to expect that certain pathogenic forms were descended from originally nonpathogenic ancestors.
27.
Presented with the wide-ranging occurrence of " "'F . oxysporum " "'strains that are nonpathogenic, it is reasonable to expect that certain pathogenic forms were descended from originally nonpathogenic ancestors.
28.
"Because the influenza virus constantly mutates, and because only a few changes can make a nonpathogenic virus highly pathogenic, we should assume that an outbreak of any new strain or subtype is potentially dangerous to humans, " he said.
29.
Filtration is probably the most practical method for recovery from drinking water and liquid foods . " E . histolytica " cysts must be distinguished from cysts of other parasitic ( but nonpathogenic ) protozoa and from cysts of free-living protozoa as discussed above.
30.
The FDA stated the enzymes derived from the " B . subtilis " strain were in common use in food prior to January 1, 1958, and that nontoxigenic and nonpathogenic strains of " B . subtilis " are widely available and have been safely used in a variety of food applications.
