Resistant bacteria in meat are believed to cause only a fraction of such infections, but even that would account for infections in several hundred thousand people annually.
A group of 53 women who inherited mutations in the BRCA1 gene, which causes only a small fraction of ovarian cancers, had a median survival--the point at which half the group had died--of 77 months after diagnosis compared with 29 months for women of similar age and tumor type who had no family history of cancer and no sign of the mutation.
Chile's earthquake was many times more powerful than the one that devastated Haiti earlier this year but caused only a small fraction of the casualties, thanks to geological luck and the country's preparation for such a disaster.
The draft report pushes only a little beyond this language, saying it is "virtually certain" that greenhouse gases released by human activities are causing an energy imbalance that is warming the earth, and finding "very high confidence" that natural drivers of climate change are causing only a small fraction of that imbalance.
Because TDI causes symptoms in only a fraction of exposed workers, genetic factors may play a key role in disease susceptibility.
The inherited and congenital causes explained only a small fraction of the incidences of NTD and they were not distinctly different among the regional populations [ 16].
In the Laws, Plato does not return to this elaborate myth, but endorses the view that "the human race has been repeatedly annihilated by floods and plagues and many other causes, so that only a fraction of it survived" (Laws, 677a).
Therefore, individual differences in metabolite formation rate will likely cause only marginal differences in parent fraction values.
It is quite possible that viral infection of the glomerulus may cause collapsing glomerulopathy in only a fraction of patients with a particular viral infection.
Although CNA is generally expected to cause corresponding expression changes, only a fraction of genes in amplified or deleted chromosomal regions show differential expression as detected by current methods (Hyman et al, 2002; Chin et al, 2006; Neve et al, 2006; The Cancer Genome Atlas Network, 2008).
