The phrase "aggressive strain" is correct and usable in written English.
It can be used in contexts discussing biology, psychology, or any situation where a forceful or intense variation of something is being described.
Example: "The researchers discovered an aggressive strain of bacteria that was resistant to common antibiotics."
Alternatives: "intense variant" or "forceful type".
Foxes from the tame strain exhibit friendly behavior towards humans, paralleling the sociability of canine puppies, whereas foxes from the aggressive strain are defensive and exhibit aggression to humans.
Public Health England said the vaccine was being introduced in response to a "rapidly growing increase in cases of a highly aggressive strain of meningococcal disease, group W".
The origins of the New Atheists' impulse, according to philosopher Richard Norman, lie in 9/11 and the reappearance of a particularly aggressive strain of Christian religious fundamentalism.
Like a particularly aggressive strain of kudzu, their artistic output will invade every room of your home if you don't battle it back.
The vaccine is being introduced because there has been a rapid increase in cases of the highly aggressive strain of meningococcal disease, group W. In 2009 there were 22 cases of meningitis caused by the MenW strain.
Students and other young people are being urged to get vaccinated against an aggressive strain of meningitis that killed 24 people in the last year for which there are figures.
Bacteria and viruses multiply quickly and can therefore evolve rapidly into more aggressive strains.
"But, hypothetically, if you caught one of these aggressive strains of H1N1 from a guy that went to, for example, Paris, it could be 10 times more dangerous, and you may never know from whom you got it, and it's even less likely that you'll be able to learn where your infector visited before passing the germ on to you," Garbelotto said.
All plectasin-treated mice infected with common strains were cured, and 80% of the mice infected with aggressive strains showed no sign of illness after three days, the researchers report 13 October in Nature.
Researchers recently used microarrays, which can track thousands of genes at once, to identify genes transcribed at different levels in the brains or whole bodies of animals from selected highly aggressive versus poorly aggressive strains or from dominant versus subordinate animals within strain (rainbow trout: [24], Drosophila: [23], [25], cichlids: [26]).
Since 2000, new aggressive strains of Pst were identified in three continents: North America, Australia, and Europe (Hovmoller et al. 2008).
