Virulence of a microbe with LD50 (lethal dose 50%) with 5 Ă— 104 and another microbe of LD50 with 5 Ă— 107. Introduction: Virulence is a parameter by which the severity or degree of a disease is measured. The fatality rates of different microbes define the virulence of the pathogen. For example, Ebola and Marburg virus have fatality rates of 70% and hence, are highly virulent. Lethal dose 50% is used to measure the virulence of a microbe such as a virus or bacteria. It is the number of microbes needed for killing 50% of the experimental group of animal hosts.

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Answer 1

Question

Chapter 25.1, Problem 1TQ

Summary Introduction

To review:

Virulence of a microbe with LD50 (lethal dose 50%) with 5 Ă— 104 and another microbe of LD50 with 5 Ă— 107.

Introduction:

Virulence is a parameter by which the severity or degree of a disease is measured. The fatality rates of different microbes define the virulence of the pathogen. For example, Ebola and Marburg virus have fatality rates of 70% and hence, are highly virulent. Lethal dose 50% is used to measure the virulence of a microbe such as a virus or bacteria. It is the number of microbes needed for killing 50% of the experimental group of animal hosts.

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Answer 2

Question

Chapter 25.1, Problem 1TQ

Summary Introduction

To review:

Virulence of a microbe with LD50 (lethal dose 50%) with 5 Ă— 104 and another microbe of LD50 with 5 Ă— 107.

Introduction:

Virulence is a parameter by which the severity or degree of a disease is measured. The fatality rates of different microbes define the virulence of the pathogen. For example, Ebola and Marburg virus have fatality rates of 70% and hence, are highly virulent. Lethal dose 50% is used to measure the virulence of a microbe such as a virus or bacteria. It is the number of microbes needed for killing 50% of the experimental group of animal hosts.

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Answer 3

Question

Chapter 25.1, Problem 1TQ

Summary Introduction

To review:

Virulence of a microbe with LD50 (lethal dose 50%) with 5 Ă— 104 and another microbe of LD50 with 5 Ă— 107.

Introduction:

Virulence is a parameter by which the severity or degree of a disease is measured. The fatality rates of different microbes define the virulence of the pathogen. For example, Ebola and Marburg virus have fatality rates of 70% and hence, are highly virulent. Lethal dose 50% is used to measure the virulence of a microbe such as a virus or bacteria. It is the number of microbes needed for killing 50% of the experimental group of animal hosts.

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Answer 4

Question

Chapter 25.1, Problem 1TQ

Summary Introduction

To review:

Virulence of a microbe with LD50 (lethal dose 50%) with 5 Ă— 104 and another microbe of LD50 with 5 Ă— 107.

Introduction:

Virulence is a parameter by which the severity or degree of a disease is measured. The fatality rates of different microbes define the virulence of the pathogen. For example, Ebola and Marburg virus have fatality rates of 70% and hence, are highly virulent. Lethal dose 50% is used to measure the virulence of a microbe such as a virus or bacteria. It is the number of microbes needed for killing 50% of the experimental group of animal hosts.

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Answer 5

Chapter 25.1, Problem 1TQ

Summary Introduction

To review:

Virulence of a microbe with LD50 (lethal dose 50%) with 5 Ă— 104 and another microbe of LD50 with 5 Ă— 107.

Introduction:

Virulence is a parameter by which the severity or degree of a disease is measured. The fatality rates of different microbes define the virulence of the pathogen. For example, Ebola and Marburg virus have fatality rates of 70% and hence, are highly virulent. Lethal dose 50% is used to measure the virulence of a microbe such as a virus or bacteria. It is the number of microbes needed for killing 50% of the experimental group of animal hosts.

Answer 6

Chapter 25.1, Problem 1TQ

Summary Introduction

To review:

Virulence of a microbe with LD50 (lethal dose 50%) with 5 Ă— 104 and another microbe of LD50 with 5 Ă— 107.

Introduction:

Virulence is a parameter by which the severity or degree of a disease is measured. The fatality rates of different microbes define the virulence of the pathogen. For example, Ebola and Marburg virus have fatality rates of 70% and hence, are highly virulent. Lethal dose 50% is used to measure the virulence of a microbe such as a virus or bacteria. It is the number of microbes needed for killing 50% of the experimental group of animal hosts.

Answer 7

Chapter 25.1, Problem 1TQ

Summary Introduction

To review:

Virulence of a microbe with LD50 (lethal dose 50%) with 5 Ă— 104 and another microbe of LD50 with 5 Ă— 107.

Introduction:

Virulence is a parameter by which the severity or degree of a disease is measured. The fatality rates of different microbes define the virulence of the pathogen. For example, Ebola and Marburg virus have fatality rates of 70% and hence, are highly virulent. Lethal dose 50% is used to measure the virulence of a microbe such as a virus or bacteria. It is the number of microbes needed for killing 50% of the experimental group of animal hosts.

Answer 8

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Answer 11

Ch. 25.1 - Prob. 1TQ Ch. 25.4 - Prob. 1TQ Ch. 25.4 - Prob. 2TQ Ch. 25.4 - Prob. 3TQ Ch. 25.4 - Prob. 4TQ Ch. 25.5 - Prob. 1TQ Ch. 25.6 - Prob. 1TQ Ch. 25.6 - Prob. 2TQ Ch. 25.6 - Prob. 3TQ Ch. 25.6 - Prob. 4TQ

Solution Summary: The author compares the virulence of a microbe with LD50 and another with 5 107.

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