1. Differentiate biological vector from mechanical vector.
2. Mention two parasitic diseases transmitted by mosquitoes.
3. Explain the genetic method of control mosquitoes as disease vectors.
4. Mention any two mechanical vectors.
5. Explain how Entamoeba histolytica would cause lysis of the host cells?
6. Define giardiasis?
7. Mention three types of Leishmaniasis.
8. What specimen is recommended for detection of babesia trophozoites and merozoites?
9. Which parasitic disease has symptoms similar with that of malaria and is commonly
misdiagnosed for malaria disease?
10. Mention any three species of malaria parasites.
11. Give a plasmodium species responsible for malaria relapses.
12. What is the sexual form of plasmodium species responsible for malaria
3 answers
relapses?
1. Differentiate biological vector from mechanical vector.
2. Mention two parasitic diseases transmitted by mosquitoes.
3. Explain the genetic method of control mosquitoes as disease vectors.
4. Mention any two mechanical vectors.
5. Explain how Entamoeba histolytica would cause lysis of the host cells?
6. Define giardiasis?
7. Mention three types of Leishmaniasis.
8. What specimen is recommended for detection of babesia trophozoites and merozoites?
9. Which parasitic disease has symptoms similar with that of malaria and is commonly
misdiagnosed for malaria disease?
10. Mention any three species of malaria parasites.
11. Give a plasmodium species responsible for malaria relapses.
12. What is the sexual form of plasmodium species responsible for malaria
2. Mention two parasitic diseases transmitted by mosquitoes.
3. Explain the genetic method of control mosquitoes as disease vectors.
4. Mention any two mechanical vectors.
5. Explain how Entamoeba histolytica would cause lysis of the host cells?
6. Define giardiasis?
7. Mention three types of Leishmaniasis.
8. What specimen is recommended for detection of babesia trophozoites and merozoites?
9. Which parasitic disease has symptoms similar with that of malaria and is commonly
misdiagnosed for malaria disease?
10. Mention any three species of malaria parasites.
11. Give a plasmodium species responsible for malaria relapses.
12. What is the sexual form of plasmodium species responsible for malaria
relapses?
1. Biological vector: A biological vector is an organism that is actively involved in the transmission of a pathogen from an infected individual to a susceptible individual. The pathogen typically undergoes some form of development or replication within the vector before it can be transmitted to a new host.
Mechanical vector: A mechanical vector is an organism that passively carries a pathogen on its body or in its gut without any developmental or replicative changes occurring within the vector. The pathogen is simply transported from one host to another through physical contact.
2. Two parasitic diseases transmitted by mosquitoes are malaria and dengue fever.
3. The genetic method of controlling mosquitoes as disease vectors involves the modification of the mosquito's genetic traits to reduce its ability to transmit diseases. This can be achieved through techniques such as genetic engineering, where genes responsible for pathogen transmission are modified or replaced with non-functional genes. This can potentially reduce the ability of the mosquitoes to transmit diseases like malaria or dengue fever.
4. Two examples of mechanical vectors are houseflies and cockroaches. They can mechanically carry pathogens like bacteria or viruses on their limbs, bodies, or mouthparts and transmit them to food, surfaces, or directly to humans.
5. Entamoeba histolytica causes lysis of host cells through a combination of mechanisms. It adheres to the intestinal lining and secretes enzymes that can degrade host tissues. It also produces toxins that cause host cell death and inflammation, leading to tissue damage and lysis.
6. Giardiasis is a parasitic infection caused by the protozoan parasite Giardia lamblia. It infects the small intestine and can cause symptoms like diarrhea, abdominal pain, and weight loss.
7. The three types of Leishmaniasis are visceral leishmaniasis (also known as kala-azar), cutaneous leishmaniasis, and mucocutaneous leishmaniasis.
8. Blood smears are recommended for the detection of babesia trophozoites and merozoites.
9. Babesiosis is a parasitic disease that has symptoms similar to malaria and is commonly misdiagnosed as malaria. It is caused by the protozoan parasite Babesia and is transmitted through tick bites.
10. Three species of malaria parasites are Plasmodium falciparum, Plasmodium vivax, and Plasmodium malariae.
11. Plasmodium vivax is a species of Plasmodium responsible for malaria relapses. It can form dormant liver stages called hypnozoites, which can reactivate and cause the recurrence of symptoms months or even years after the initial infection.
12. The sexual form of Plasmodium species responsible for malaria is called the gametocyte. It is the stage in which the parasite undergoes sexual reproduction within the mosquito host, allowing it to be transmitted to another host during a blood meal.
1. Biological vector: A biological vector is an organism that is actively involved in the transmission of a pathogen from an infected individual to a susceptible individual. The pathogen typically undergoes some form of development or replication within the vector before it can be transmitted to a new host.
Mechanical vector: A mechanical vector is an organism that passively carries a pathogen on its body or in its gut without any developmental or replicative changes occurring within the vector. The pathogen is simply transported from one host to another through physical contact.
2. Two parasitic diseases transmitted by mosquitoes are malaria and dengue fever.
3. The genetic method of controlling mosquitoes as disease vectors involves the modification of the mosquito's genetic traits to reduce its ability to transmit diseases. This can be achieved through techniques such as genetic engineering, where genes responsible for pathogen transmission are modified or replaced with non-functional genes. This can potentially reduce the ability of the mosquitoes to transmit diseases like malaria or dengue fever.
4. Two examples of mechanical vectors are houseflies and cockroaches. They can mechanically carry pathogens like bacteria or viruses on their limbs, bodies, or mouthparts and transmit them to food, surfaces, or directly to humans.
5. Entamoeba histolytica causes lysis of host cells through a combination of mechanisms. It adheres to the intestinal lining and secretes enzymes that can degrade host tissues. It also produces toxins that cause host cell death and inflammation, leading to tissue damage and lysis.
6. Giardiasis is a parasitic infection caused by the protozoan parasite Giardia lamblia. It infects the small intestine and can cause symptoms like diarrhea, abdominal pain, and weight loss.
7. The three types of Leishmaniasis are visceral leishmaniasis (also known as kala-azar), cutaneous leishmaniasis, and mucocutaneous leishmaniasis.
8. Blood smears are recommended for the detection of babesia trophozoites and merozoites.
9. Babesiosis is a parasitic disease that has symptoms similar to malaria and is commonly misdiagnosed as malaria. It is caused by the protozoan parasite Babesia and is transmitted through tick bites.
10. Three species of malaria parasites are Plasmodium falciparum, Plasmodium vivax, and Plasmodium malariae.
11. Plasmodium vivax is a species of Plasmodium responsible for malaria relapses. It can form dormant liver stages called hypnozoites, which can reactivate and cause the recurrence of symptoms months or even years after the initial infection.
12. The sexual form of Plasmodium species responsible for malaria is called the gametocyte. It is the stage in which the parasite undergoes sexual reproduction within the mosquito host, allowing it to be transmitted to another host during a blood meal.
1 answer