We also divided pseudogenes into relative-time groups: ancestral pseudogenes inherited from a common ancestor, pseudogenes recombined between serovars which likely arose between initial divergence and later recombination, serovar-specific pseudogenes arising after recombination but prior to the last evolutionary bottlenecks in each population, and more recent strain-specific pseudogenes.
The older strains were, in general, much more resistant than the more recent strains (Table 1).
To date, 29 YFV strains from Pará dating from 1969 through 1999 have been examined; none of these more recent strains cluster with the earlier clade.
An interesting aspect of this study is the remarkable difference in resistance against various classes of antibiotics between old and more recent strains of MRSA.
In lineage D5, the strain (RA98 - Bangladesh) dating from 1984 is substantially closer to the root than the other strains (dating from 2000s) and was collected during an outbreak, while the more recent strains were reported as sporadic cases.
Although some outbreaks and sporadic cases associated with genotype D4 had been reported from Europe, the corresponding viruses were mostly imported from other continents and differed considerably from the more recent strains (6, 11, 30 ).
The best identities among CCoV-IIa isolates were to strain Insavc-1, which has been proposed as intermediate virus between CCoV and TGEV (26 ) and to the more recent pantropic strain CB/05 (11 ) in the 5′ and 3′ ends, respectively.
More recent commercial strain elastography systems can monitor and feed back information regarding compression quality in the form of visual scales and graphs, which operators can view in real time to optimize their compression technique.
Sequence analysis of more recent MV strains from Nigeria and DRC is warranted to evaluate whether these SIAs had any effect on MV strain diversity in both countries.
The publishers of O, Real Simple and Hush, a Hearst publication subsidized in part by California Closets, have embraced simplicity as a multipurpose mantra, one that subsumes both the latest wave of Asian-tinged spirituality and more recent Western strains of antimaterialism.
