QUESTION how did malaria evolve? ANSWER Malaria in humans probably evolved independently several times, and both times likely due to a cross-over event from a closely related primate malaria. For example, Plasmodium vivax is evolutionarily closely related to several species of malaria found in macaque monkeys in south-east Asia, and so a cross-over of one of those species into human, with … [Read more...]
Plasmodium
QUESTION Is Plasmodium a bacteria. Why? ANSWER No, Plasmodium is actually a protozoan—that is, a single-celled organism that is usually microscopic and belongs to the Domain Eukaryota (which also includes all plants and animals, but excludes bacteria and archaea). More specifically, Plasmodium belongs to the Apicomplexa group of protozoans, which are characterised as being parasites of … [Read more...]
How does one catch malaria?
QUESTION How do you get malaria? ANSWER Malaria is caused by a parasite called Plasmodium, which is transmitted via the bites of infected mosquitoes. In the human body, the parasites multiply in the liver, and then infect red blood cells. Usually, people get malaria by being bitten by an infective female Anopheles mosquito. Only Anopheles mosquitoes can transmit malaria and they must have … [Read more...]
Multiple Malaria Infections in Mosquitoes
QUESTION Is it possible for female Anopheles to have a multiple infections? ANSWER Yes. Anopheles mosquitoes have been found in the wild with mixed infections of different Plasmodium species, and have also been shown to be capable of transmitting mixed infections under laboratory conditions. … [Read more...]
Symptoms and Causes of Malaria
QUESTION What are the symptoms and causes of malaria? ANSWER Malaria is caused by a parasite called Plasmodium, which is transmitted via the bites of infected mosquitoes. In the human body, the parasites multiply in the liver, and then infect red blood cells. Usually, people get malaria by being bitten by an infective female Anopheles mosquito. Only Anopheles mosquitoes can transmit … [Read more...]
What are the causes of malaria?
QUESTION What are the causes of malaria? ANSWER Malaria is caused by a parasite called Plasmodium, which is transmitted via the bites of infected mosquitoes. In the human body, the parasites multiply in the liver, and then infect red blood cells. Usually, people get malaria by being bitten by an infective female Anopheles mosquito. Only Anopheles mosquitoes can transmit malaria and they … [Read more...]
How many types of malaria are there?
QUESTION How many types of malaria are there? ANSWER There are four species of malaria parasite that commonly infect humans. These are: Plasmodium falciparum, P. vivax, P. ovale and P. malariae. In addition, a fifth species, P. knowlesi, is starting to draw public health attention as an infection in humans in south-east Asia, and particularly Borneo - previously, it was thought to only … [Read more...]
What is a Malaria Parasite?
QUESTION What is a malaria parasite? ANSWER A malaria parasite is a single-celled protozoan of the genus Plasmodium. These parasites have a complex life-cycle, which involves sexual reproduction in a mosquito vector, plus cycles of asexual reproduction and multiplication in a human host (or other animal - other primates, rodents, birds and reptiles can also be infected with … [Read more...]
Causes of Malaria
QUESTION What is malaria usually caused by? ANSWER Malaria is caused by a parasite called Plasmodium, which is transmitted via the bites of infected mosquitoes. In the human body, the parasites multiply in the liver, and then infect red blood cells. Usually, people get malaria by being bitten by an infective female Anopheles mosquito. Only Anopheles mosquitoes can transmit malaria and … [Read more...]
Number of Malaria Infections Per Mosquito
QUESTION How many people get malaria by one mosquito? ANSWER That is a very interesting question—the answer is that is varies between regions, and also depends on the type of mosquito. It was often believed that female mosquitoes (which feed on blood—males only feed on nectar) required a single blood meal in order to lay eggs and reproduce, and so would feed approximately once … [Read more...]