Disease Detectives B/C

[bhavjain]

Since no one has posted in a while:

Differentiate between pathogenicity, infectivity, and virulence.

Answer (Click to Show Hidden Text)

Infectivity - ability of a pathogen to undergo horizontal transmission, or actually spread to another organism. This is taken without regard to whether the pathogen actually causes disease.

Pathogenicity - ability of a pathogen to actually cause disease once it has infected the host

Virulence - degree/extent to which the disease is; severity of the disease caused by pathogen.

[dcrxcode]

Since no one has posted in a while:

Differentiate between pathogenicity, infectivity, and virulence.

Answer (Click to Show Hidden Text)

Infectivity - ability of a pathogen to undergo horizontal transmission, or actually spread to another organism. This is taken without regard to whether the pathogen actually causes disease.

Pathogenicity - ability of a pathogen to actually cause disease once it has infected the host

Virulence - degree/extent to which the disease is; severity of the disease caused by pathogen.

Yep, your turn!

[bhavjain]

List three pathogens that can cause Guillain-Barré syndrome. What are the symptoms of the disorder?

[kelei]

List three pathogens that can cause Guillain-Barré syndrome. What are the symptoms of the disorder?

Pathogens: Campylobacter jejuni bacteria, CMV, influenza virus Symptoms: pain in the muscles, fatigue, muscular weakness and malfunction, abnormal or fast heart rate

[bhavjain]

List three pathogens that can cause Guillain-Barré syndrome. What are the symptoms of the disorder?

Pathogens: Campylobacter jejuni bacteria, CMV, influenza virus Symptoms: pain in the muscles, fatigue, muscular weakness and malfunction, abnormal or fast heart rate

Correct. Your turn.

[yang573]

Something something no posts.

George sneezed in Lucas' face and Lucas caught his cold. Ptady, who was sitting across the room, also gets sick.

What two types of transmission are responsible here? Be specific.

[Private Wang Fire]

Something something no posts.

George sneezed in Lucas' face and Lucas caught his cold. Ptady, who was sitting across the room, also gets sick.

What two types of transmission are responsible here? Be specific.

Are we gonna revive this :o (answer) (Click to Show Hidden Text)

Lucas - droplet
Ptady - airborne

[yang573]

Something something no posts.

George sneezed in Lucas' face and Lucas caught his cold. Ptady, who was sitting across the room, also gets sick.

What two types of transmission are responsible here? Be specific.

Are we gonna revive this :o (answer) (Click to Show Hidden Text)

Lucas - droplet
Ptady - airborne

That is correct. Your turn.

[Private Wang Fire]

You are conducting a study on [some disease] when a helpful friend tells you age may be a confounding variable.

1. What is confounding?
2. How can you modify your study design to account for this?
3. Which test statistic would you use after data collection?

[Unome]

Something that I know! (Click to Show Hidden Text)

1. If a variable is associated with both the exposure being tested and the disease/treatment being studied, but is not causally related to the exposure, then it is a confounding variable, or confounder.
2. Stratify or match the participants by age group, or just restrict the study to a certain age group (though the second may create further confounders).
3. Not sure exactly what's being asked; is this asking for a type of statistical test?