Cryptosporidium Quiz by 🐼

What is the main route of transmission for most Cryptosporidium infections?

• Respiratory

• Ingestion of oocysts

• Direct contact with infected individuals

• Vector-borne transmission

Which of the following is a characteristic of Cryptosporidium oocysts?

• Smooth surface

• Rough surface

• Oval shape

• Thin multi-layered wall

What is the primary diagnostic method for identifying Cryptosporidium oocysts in stool samples?

• Endoscopy

• Histologic testing

• Acid-fast technique

• PCR analysis

What is the typical number of watery stools per day in patients with severe and prolonged cryptosporidiosis?

• 1-2

• 3-5

• 5-10

• 10-15

Which stage of Cryptosporidium is resistant to different disinfectants including chlorine?

• Sporozoites

• Trophozoites

• Merozoites

• Oocysts

What unique organelle does Cryptosporidium develop to derive nutrients from the host cell?

• Mitochondrion

• Feeder organelle

• Chloroplast

• Golgi apparatus

In which type of meront does Cryptosporidium produce eight merozoites?

• Type 1

• Type 2

• Type 3

• Type 4

What percentage of zygotes form thin-walled oocysts that are able to reinfect the host?

• 10%

• 20%

• 30%

• 40%

What is the primary source of Cryptosporidium infection in humans associated with outbreaks?

• Contaminated drinking water

• Airborne transmission

• Direct contact with infected animals

• Soil contamination

Which animals are mentioned as possible reservoir hosts for Cryptosporidium?

• Dogs and cats

• Birds and reptiles

• Cows and pigs

• All of the above