The most pathogenic isolates of F. tularensis are type A1 strains (subspecies tularensis), which may cause human infection with as few as 10 organisms [2], [3], and are associated with 30% mortality in the absence of antibiotics following pneumonic tularemia [1], [4].
Most pathogenic isolates tested were isolated directly from the field, and many of these isolates had comparable or higher hydrolytic activity than the engineered strain T. reesei RUT-C30 when tested on untreated biomass and hemicellulose.
In a study of community-acquired bloodstream infections across Africa, NTS was the most common pathogenic isolate in adults; in children, it was the second most common, after Streptococcus pneumoniae [ 6].
The human isolate A/Vietnam/1203/04 (H5N1) is one of the most pathogenic virus isolates; and severity of disease was associated with broad tissue tropism and high virus titers in multiple organs, including the brain.
Regarding the distribution of L. monocytogenes serotypes in food products, Table 3 shows that those referred to as the most potentially pathogenic isolates to human consumers, 1/2a, 1/2b, and 4b, were more prominent at 30.3% (1751/5770), rising to 36.8% when serotype 1/2c samples (2129/5770) were included in the calculation.
Favourable outcome may also be achieved with limited spectrum therapy, directed only against the most common and pathogenic isolates (aerobic Gram-negative bacilli and anaerobes).
Determination of the shared repeat elements between SD20-NP/DW7-ToxB and the reference showed that the two most common types of repeat elements in BFP-ToxAC are also the most common elements shared with the pathogenic isolate, DW7-ToxB (Table 3); 46.5% and 28.1% of the reads that mapped to repeats in the reference represented shared DNA transposons and LTR retrotransposons, respectively.
Most human-pathogenic isolates of IAV form up to 10 μm long filamentous particles that require extensive membrane resources.
The isolate of Pcc20 has the most pathogenic effects, while Pcc10 and Pcc60C were the moderate ones of Pcc and these isolates could be selected for further work in the natural environment.
The moderately low MICs for triazoles imply a great resistance to killing among isolates of S. brasiliensis, the most pathogenic among Sporothrix species.
