0
Are many protozoa parasites and cause diseases such as malaria amoebic dysentery and African sleeping sickness?
Wiki User
∙ 11y ago
malaria is endemic in many parts of the world and almost 300,000,000 people suffer from it. About 500,000 to 800,000 die because of it. Mostly in Africa and below 5 years old children. It is one of the major cause of morbidity and mortality, in tropical countries. This parasite now belongs to protozoa family but probably evolved from plant kingdom. It is transmitted by bite of infected Anabel's mosquito. In case of amoeba it belongs to protozoa and entmoeba hystolytica is pathogenic in man. It is transmitted by fecal-oral route. Active form is not infective. There are many people carrier of this protozoa. They are chronic carrier. They pass cyst in feces and ingested by victim due to poor hygiene. African sleeping sickness is transmitted by infected tsetse fly. As name suggesed in is common in most of the sub-saharan countries.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What insect carries the parasite that causes African sleeping sickness?
Human African Trypanosomiasis, Sleeping Sickness, African lethargy or Congo Trypanosomiasis are all names for the same disease of people and animals which is caused by a parasitic protozoa of the species Trypanosoma brucei, transmitted by the bite of the Tsetse Fly.
What are some of the problems and needs of modern day Africa?
there is not enough food. There is sickness with too little medicine. There is heavy crime.
Sleeping sickness is cause by what?
Trypanosomiasis (sleeping sickness) is caused by Tsetse fly.
Sickness and medicines in the late 1700's and early 1800's?
Some sickness was smallpox and black plague.
How does the immune system respond to the invasion of African sleeping sickness?
African sleeping sickness, also known as human African trypanosomiasis (HAT), is usually caused by the parasites trypanosomes. The trypanosomes are important pathogenic protozoa. Protozoa are unicellular eukaryotic microorganisms that lack cell walls. Protozoa usually obtain food by ingesting other organisms or organic particles. In humans, the trypanosomes live and grow primarily in the bloodstream, but in the later stages of the disease, invasion of the central nervous system occurs, causing an inflammation of the brain and spinal cord that is responsible for neurological symptoms of African sleeping sickness. As you may know, our body has two kinds of immunity, cell-mediated (T cell-mediated) immunity and humoral (antibody) immunity, to help us resist infection. The specificity of the antigen-antibody interaction in humoral immunity or antigen-T cell interaction in cell-mediated immunity is very critical in our immune response. Our immune response occurs only AFTER a microorganism interacts with the immune system. The specific immune effectors, either T cells or antibodies, then interact with the invader and destroy it. This capacity for responding to challenge after additional exposure to the same microorganism is known as "memory". Therefore, the antigen is critical in the whole immune recognition. However, trypanosomes have the ability to evade the immune responses by periodically switching their major surface antigens, variant surface glycoprotein (VSG), a phenomenon called antigenic variation. Antigenic variation, we believe, is the major mechanism for the trypanosomes survival in the human body. In some recent studies, scientists showed that several other mechanisms might also help trypanosomes survive. The ability to grow in high levels of interferon-gamma and to avoid complement-mediated destruction may facilitate the parasite's infection.
What diseases does protozoa carry?
Examples of human diseases caused by protozoa: malaria, amoebias , giardiasis , toxoplasmosis , cryptosporidiosis, trichomoniasis , leishmaniasis , sleeping sickness , dysentery,
Is it true that many protozoa are parasites and cause disease such as malaria amoebic dysenteryand African sleeping sickness?
All the diseases, which are mentioned above are caused by protozoa.
What are some examples of human diseases caused by protozoans?
Some protozoa are human parasites, causing diseases.Examples of human diseases caused by protozoa:MalariaAmoebiasisGiardiasisToxoplasmosisCryptosporidiosisTrichomoniasisLeishmaniasisSleeping SicknessDysentery
What are five examples of protozoans?
Protozoa are one celled organisms. Many protozoans are responsible for diseases in humans. Some of these are: dysentery, malaria, toxoplasmosis, and sleeping sickness.
What kind of damage does protozoa do to you?
Protozoa infestations cause: Amoebiasis, Chagas disease, Cryptosporidiosis, Dysentery, Giardiasis, Leishmaniasis, Malaria, Sleeping Sickness, Toxoplasmosis, and Trichomoniasis.
What are some examples of protozoa?
Plasmodium falciparum that causes MalariaEntamoeba histolytica that causes AmoebiasisGiardia lamblia that causes GiardiasisTrypanosoma brucei causes African trypanomiasis aka African Sleeping Sickness
How can protists harm human?
Certain types of protists are parasites. malaria is s protist that causes a disease state in humans. Amebic Dysentery is another protist parasite. Others include Cryptosporidium, Giardiasis, and African Sleeping Sickness.
What sickness can you get on the Oregon trail?
they ran into diseases, parie fires, broken wagons , and mountains and rivers
Which cause malaria sleeping sickness and amoebic dysentery?
Protists
What are the importance of protozoa?
i know that protozoa causes some sickness like malaria but what are the economic importance of this organism.
What does protozoa cause?
Cause of Protozoa- parasitic infections in humans are usually in the size range of 1-100 micrometres (millionths of a metre) and have two stages in life cycle. *Infection is usually spread by structures called cysts which are cells that have secreted a protective layer around them so that they can survive the journey from one host to the next. Once inside the new host, these cysts develop into the active protozoa which grows, reproduces and causes symptoms of disease in the new host. *Common infections caused in humans are amoebic dysentery, sleeping sickness and malaria. *Protozoa can infect any human tissue, and are the cause of a variety of diseases.
These large complex single celled organisms can cause disease like African sleeping sickness?
They are known as protozoa. They include free-living forms (amebas and paramecia) as well as parasites.
