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Median Lethal Dose
The LD50 is the number of pathogenic cells, virions, or amount of toxin required to kill 50% of infected animals. The lower the LD 50, the more virulent the pathogen is.
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Biomedical Sciences
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Median Infectious Dose
Median Lethal Dose
Virulence Factor
Which of the following statements best describes virulence?
Which of the following are important indicators of virulence?
How does a highly virulent pathogen typically affect its host?
Which of the following best explains why some individuals might be asymptomatic when infected by a less virulent pathogen?