QUESTION What are the socio-economic issues on the spread of malaria? ANSWER Malaria transmission requires the presence of Anopheles mosquitoes; as such, conditions which favor the growth and persistence of these mosquitoes will also be hotspots for malaria transmission, provided the climate is also sufficiently warm for the development of the parasite within the mosquito. Rural areas … [Read more...]
Discovery of Malaria
QUESTION How was malaria discovered? ANSWER Malaria has long been known to human populations from across the world. In fact, the first mention of the symptoms of malaria comes from an ancient Chinese manuscript from 2700 BCE! However, the actual cause and mechanism of transmission of the disease was only discovered in the 19th century. It was Charles Louis Alphonse Laveran, a French … [Read more...]
Is Malaria Contagious?
QUESTION Is malaria contagious? ANSWER Malaria cannot be transmitted directly between people via normal circumstances, so it is not contagious in the same way flu or the common cold is contagious. It also cannot be sexually transmitted. In most cases, malaria can only be transmitted via the bite of an infected mosquito, so unless those mosquitoes are present, it cannot be transmitted. … [Read more...]
Sterilizing Mosquitoes to Fight Malaria
QUESTION Is it possible to breed mosquitoes in the laboratory and then sterilize them and release them into the environment in order to reduce their rate of reproducing. ANSWER That is a very good question, and indeed efforts to genetically modify mosquitoes in order to control the various diseases they transmit are underway in many laboratories across the world. For almost 15 years, … [Read more...]
Malaria and Ross River Fever
QUESTION Is malaria similar to Ross river Fever which is common in Australia? If you have Ross River and get bitten by a mosquito can the mosquito pass it on to some one else. ANSWER Ross River fever is similar to malaria in that both are transmitted by mosquitoes. However, Ross River fever is caused by a virus, whereas malaria is caused by a protozoan (single-celled) parasite. Also, the … [Read more...]
What is malaria, and what causes it?
QUESTION What is malaria and what causes it? 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...]
US Army Doctor William Crawford Gorgas: Sent to Panama to fight Malaria
QUESTION What was the doctor's name who was sent to Panama to fight Malaria when Panama Canal was being built? ANSWER I believe the person you are referring to is Dr. William Crawford Gorgas. Dr Gorgas was the chief sanitary officer for the Panama Canal project and had gained experience in controlling vector borne diseases while working in Havana, Cuba, where yellow fever was a problem. … [Read more...]
Evolution of Malaria
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...]
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...]
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...]