Phages more often persist as episomal plasmid DNA in the bacteria.
Sarcoids are locally invasive and often occur at sites of previous injury or scarring; additionally, they very rarely regress, more often persist and can be locally aggressive.
The tumours can occur anywhere on animal's body; however they often arise in areas of previous injury or scarring; additionally, they very rarely regress, more often persist and can be locally aggressive.
Participants often persisted in, or resumed activity despite negative experiences.
Associated retinal pathologies often persist more than one month and include Purtscher flecken, cotton wool spots and retinal haemorrhage.
In addition, following acute Q fever, patients frequently report long-lasting fatigue, which often persists for more than six months [ 8- 10].
Once established for more than a few weeks, symptoms often persist for months and tend to resist treatment, although they eventually lessen".
It is clear that the equatorial scintillations become more prominent from post-sunset hours and often persist till post-midnight hours (i.e. from 1900 to 0300 LT) mainly at the bottom side of the F-region (150 350 km).
The hematuria (red blood cells in the urine) will often persist for a few more days, then it stops.
These adverse outcomes often persist for 12 months or more following orthopaedic trauma.
