8.15 Pathogens and Infectious Diseases

• Pathogens are microorganisms that can cause infectious diseases
• What type of pathogen causes strep throat?

  Bacteria
• Pathogens can spread through air, water, and direct contact.
• Order the following transmission routes of pathogens from most direct to least direct:

  1️⃣ Direct Contact

  2️⃣ Airborne

  3️⃣ Foodborne

  4️⃣ Vectors

  5️⃣ Waterborne
• Match the transmission route with an example disease:

  Airborne ↔️ Influenza

  Waterborne ↔️ Cholera

  Direct Contact ↔️ HIV

  Vectors ↔️ Malaria
• Viruses are single-celled organisms that can replicate independently.

  False
• Which type of pathogen causes malaria?

  Protozoa
• Parasites live in or on a host
• All pathogens require a host to replicate.
• Match the type of pathogen with its description:

  Bacteria ↔️ Single-celled microorganisms

  Viruses ↔️ Non-cellular entities

  Fungi ↔️ Multi-cellular organisms
• Fungi are multi-cellular organisms causing diseases like Athlete's foot and ringworm
• Protozoa are single-celled eukaryotic organisms causing diseases like Malaria and dysentery
• Parasites are organisms that live in or on a host, causing diseases like Tapeworms and hookworms
• Bacteria are single-celled microorganisms that can cause diseases like Strep throat and E. coli infections.
• Viruses are non-cellular entities that require a host to replicate
• What type of pathogen causes Strep throat?

  Bacteria
• What is an example of a viral disease?

  Influenza
• Fungi are multi-cellular organisms that can cause diseases like Athlete's foot and ringworm.
• Protozoa are single-celled eukaryotic organisms that cause diseases like Malaria and dysentery
• Match the type of pathogen with its description:

  Bacteria ↔️ Single-celled microorganisms

  Viruses ↔️ Non-cellular entities requiring a host

  Fungi ↔️ Multi-cellular organisms
• What is the causative agent of Malaria?

  Protozoa
• Viruses require a host to replicate because they lack their own cellular machinery.
• Bacteria are single-celled microorganisms that can cause diseases like Strep throat and E. coli
• Fungi are multi-cellular organisms that can cause diseases like Athlete's foot and ringworm
• Viruses are non-cellular entities that can cause diseases like Influenza and HIV.
• Bacteria are single-celled microorganisms that can cause diseases like Strep throat and E. coli
• What is an example of a disease caused by protozoa?

  Malaria
• Bacteria can cause diseases like Strep throat and E. coli infections.
• Protozoa are single-celled eukaryotic organisms that can cause diseases like Malaria and dysentery
• What type of organism causes Athlete's foot?

  Fungi
• Bacteria are single-celled microorganisms that can cause diseases like Strep throat and E. coli infections.
• Fungi are multi-cellular organisms that can cause diseases like Athlete's foot and ringworm
• Match the pathogen with an example of a disease it causes:

  Bacteria ↔️ Strep throat

  Viruses ↔️ Influenza

  Fungi ↔️ Athlete's foot

  Protozoa ↔️ Malaria
• Order the common transmission mechanisms of pathogens:

  1️⃣ Airborne

  2️⃣ Waterborne

  3️⃣ Direct contact

  4️⃣ Vectors

  5️⃣ Foodborne
• What is an example of a disease transmitted through airborne transmission?

  Influenza
• Waterborne transmission occurs when pathogens are found in contaminated water.
• Direct contact is a transmission mechanism that involves physical contact with an infected individual or surface
• What is an example of a disease transmitted through vectors?

  Malaria
• Foodborne transmission occurs when contaminated food is consumed.
• Match the transmission route with an example of a disease:

  Airborne ↔️ Influenza

  Waterborne ↔️ Cholera

  Direct contact ↔️ HIV

  Foodborne ↔️ Salmonella