virulent örnekleri

• Epidemiological consequences of a pathogen having both virulent and avirulent modes of transmission : the case of rabbit haemorrhagic disease virus.

• However, not all strains are considered virulent strains.

• Following their arguments, at the beginning of the infection, when the density of uninfected cells is high, selection can favour a highly virulent virus.

• Although he died of tuberculosis, there was no sign of the equally virulent smallpox, against which both brothers had been vaccinated in childhood.

• At last there was a large enough population of susceptible hosts to sustain the most virulent organisms.

• By mid-century the dispute had apparently become even more virulent.

• Therefore, only 50% of the progeny of this cross should be virulent.

• By causing the prevalence of relatively benign diseases to decline, such improvements might enhance the chances of more virulent parasites to invade.

• However, it is not generally considered that less virulent infections dictate immediate caesarean delivery as the data available is scanty and conflicting.

• To reduce the chance of human infections with highly virulent rodent-borne agents such as hantaviruses, trapping and sampling protocols followed established safety guidelines [11].

• Although the exercise was only partially successful, these papers document the fascinating interaction between the originally highly susceptible rabbit and the originally highly virulent virus.

• The potential to spread this virulent pathogen is high among such vulnerable groups.

• Thus, in effect, host immunity rendered a virulent parasite less virulent, with associated reductions in life-time transmission potential.

• Two approaches to the problem are currently being made: controlled exposure to virulent coccidia, or the development of attenuated strains for use in a vaccine.

• The relative virulence of the 2 clones is unaltered by dose and the more virulent clone is always more virulent.