The phrase "a minority of isolates" is correct and usable in written English.
It can be used when discussing a small subset of a larger group, particularly in scientific or statistical contexts.
Example: "In our study, a minority of isolates showed resistance to the antibiotic treatment."
Alternatives: "a small number of isolates" or "a few isolates".
Besides the herd pulsotype, a minority of isolates with other pulsotypes were found on the carcasses.
Other virulence genes, including tst1 and the epidermal cell differentiation inhibitor gene edinA, can be found in a minority of isolates.
A minority of isolates belonging to Qinghai, Novosibirsk region, Shantou and Omsk did not group with either of these sublineages and have been left unassigned.
The ACME locus is present in a minority of isolates ([172], and in three out of some 200 tested by the authors).
Secondly, a minority of isolates contained a second, more divergent, PF10_0348-like sequence that does not match with other known loci, and although this was not included in the analysis it suggests there are paralogous genes in some parasites.
In a previously published study from the authors it was observed that packaged DNA of HBoV in all investigated clinical isolates was of negative polarity and that only a minority of isolates additionally contained the positive strand [23].
Besides, not only interfaces were affected, also a minority of isolated vesicles presented homogenous lectin binding, yet with increasing quantity over time.
Firstly, one of the laboratory isolates and a minority of field isolates had an internal stop codon, so these may be null with regard to protein expression.
However, in these recent two Mumbai-based cross-sectional surveys only a minority of the isolates recovered had the genetic capability to produce SIC or DRS (one isolate of emm1 and 3 isolates of emm12; Table 2).
However, using culture of biopsies with gentamicin protection to isolate intracellular E. coli from the mucosa in CD, we have found that only a minority of intracellular isolates have adherent and invasive properties in vitro [ 12].
Indeed, the only clear evidence that a bound human plasma protein contributes to S. pyogenes virulence comes from studies, in a transgenic mouse model, of a plasminogen-binding M protein expressed by a minority of clinical isolates [42], [43].
