Showing posts with label malaria. Show all posts
Showing posts with label malaria. Show all posts

Mosquitoes Spread to New Regions

Insects and animals are moving to different regions. As climate changes with Queensland and Western Australia becoming tropical far down the coast insects are leaving their native areas. Mosquitoes are in epidemic proportions in Brisbane and they are even reaching Sydney.
Asian tiger mosquito
More than a million people a year die from malaria. Many recover but become very sick. The illness does return to sufferers in future years. It is not just the warmth that attracts mosquitoes thus spreading the disease. A hotter climate means more rain that the insects thrive in. They breed in pools of water trapped in all kinds of crevices.

Certain kinds of mosquitoes transmit different disease. Dengue fever, Yellow fever virus, chikungunya, West Nile virus, Japanese encephalitis, and malaria are all spread by mosquitoes. They get to new regions in people's belongings due to increasing world travel.

The dangerous insect is taking over virgin ground rapidly. A few years ago the chikungunya virus was not found in America. It is now established in North, Central and South America. Even cooler European countries are now at risk. The Asian Tiger Mosquito is predicted to get to mainland Australia very soon. It brings dengue fever, Yellow fever virus, and chikungunya fever. At the moment Ross River Virus is the most common mosquito born disease in Australia. This could soon change.
Biology by Ty Buchanan
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            Australian Blog   Adventure Australia

Spread of Malaria to Man from Other Apes - Just Theory

Gorillas caused it. Scientists say mosquitoes split into a new form capable of infecting humans when Man and chimpanzees had a common ancestor. This is a myth. It is not based on fact. Bonobos have also been singled out for blame despite no parasites being found in bonobos or western gorillas, though some parasites were found in chimpanzees and eastern gorillas.

Before conclusions can be drawn on such research evidence of this mystery ancestor must be found first. This is all hearsay. How can present day apes be responsible for current malaria infection. Gorillas are only found in very small parts of Africa, not all around the world.

This wreaks of leaps of faith not science. It is no better than religious beliefs based on prophets who probably never existed. It is scientific fact that evil spirits do not cause disease, yet millions of people believe that a man, Jesus, cured illness by casting out spirits.  Note, everyone is entitled to follow a religion.
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Australian Blog                         

Mosquitoes Fly on After Being Hit by Raindrops

Mosquitoes are extremely robust. They can survive being hit by raindrops 50 times their size. The insect is knocked down a little by the raindrop travelling at 300 times normal gravity, but it recovers and flies on.

This attribute was discovered by videoing insects actually being hit by raindrops from artificial rain. There was no improvement in stopping the spread of malaria. Better ways of designing tiny flying robots was enhanced, however, because rain tends to knock mechanical drones off course. Even aeroplanes are detrimentally affected by rain.

The raindrops on mosquitoes tests were exciting to watch. As the rain hit them they dropped, then recovered and sheltered on the wall of the test area. They fell an average of 13 body lengths. Nearly all hits were glancing blows which made mosquitoes roll, pitch and yaw. A direct hit led to a fall of 20 body lengths.

The theory is that mosquitoes are so small the speed of raindrops falling to earth is not affected, This means little energy is transferred to mosquitoes by collisions.
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