believe the use of DDT is good, while others think it is terrible. DDT use would aid against malaria in less developed countries, but due to its harmful effects, the risks outway the benefits for use in the United States. The reason why DDT should not be used in America is because it brings harmful effects to humans and animals. DDT affects pregnant women, doctors have discovered that the exposure to DDT causes babies to be premature or low birth weights. Also, DDT would get in the
elsewhere.” [2] These chemicals enabled scientists to invest their time on creating pesticides that would reduce the environmental impact that pesticides can do. Yet, they have not figured out a way to nullify the environmental damage and harmful effects they cause. Throughout history, pesticides were used with the intention to help society but there are prices to pay when using such chemicals. Pesticides benefit us, human beings, by allowing us to manage pests that carry harmful diseases, benefits agriculture
some of the major health problems as HIV/AIDS, Tuberculosis and malaria. Ynaija.com stated some of the major health issues in Nigeria as Malaria, Common cold or Flu, HIV/AIDS, Pelvic Inflammatory disease, Hypertension, Acute diarrhoea. Another website listed some issues which are rampant in Nigeria some of the issues were the same as the above listed issues but they added two other such as maternal health, reproductive health • Malaria • Common cold or Flu • HIV/AIDS • Pelvic Inflammatory disease
DISEASES A. Overview Infectious diseases are a major cause of death, disability and social and economic turmoil for millions around the world since centuries ago and are continuing to danger everyone until now. Even though some diseases have been effectively controlled with the help of modern technologies, yet new diseases are constantly appearing and even some are resistant to drug treatments. There have been many studies on the factors, effects and treatments against infectious diseases in human
genome causes a birth defect called Sickle Cell Anemia. While this disease can greatly affect the sufferer, there are many ways to treat it and improve quality of life. 90,000 to 100,000 Americans suffer from Sickle-cell Anemia, or Sickle-cell Disease. It is an evolutionary trait developed to protect people from malaria, and people with the disease cannot contract malaria. It is more common in places like Sub-Saharan Africa, Saudi Arabia, India, South America and the Caribbean, where malaria is also
Prize in physiology and medicine in 1948 for his discovery on the toxic efficiency of DDT as a contact insecticide against several arthropods. DDT was used widely throughout the world during the second half of World War II by the Allies to control malaria and typhus among civilians
CHAPTER TWO LITERATURE REVIEW 2.1 Biology of the Malaria parasite Malaria is caused by members of the genus Plasmodium, an apicomplexa which exhibits a heteroxenous life cycle involving a vertebrate host and an arthropod vector. Four distinct species infected humans: P. falciparum, P. vivax, P. ovale and P. malariae (Krogstad, 2000). The P. falcipurum has 4 stages which mark the life cycle in the liver, blood and within the Anopheline mosquitoes. Sporozoites are injected with the saliva during mosquito
Crops such as wheat and rice grow well in high temperatures, while plants such as maize and sugarcane prefer cooler climates. Changes in rainfall patterns will also affect how well plants and crops grow. The effect of a change in the weather on plant growth may lead to some countries not having enough food. Brazil, parts of Africa, south-east Asia and China will be affected the most and many people could be affected by hunger. All across the world, there is
microorganisms that cause malaria. In this scenario, Darwinian medicine is able to answer the question 'Why is sickle-cell much more common in places such as Africa?' with the reasoning that malaria thrives in those areas. Additionally, the goal of evolution is to create an ideal environment for reproduction, despite the effects later in life. Since the life expectancy of sickle-cell is long enough to allow an affected person to reproduce, natural selection favors its gene over malaria. Darwinian medicine
chemical concoctions. One of the most well known of these elixirs is the chemical known as dichloro-diphenyl-trichloro-ethane, otherwise known as DDT. In 1948, Swiss chemist Paul Muller won the Nobel Prize for Physiology or Medicine for discovering the effects of DDT as an efficient pesticide. He had discovered that DDT was “not merely poison, it: destroyed enzymes that protect the body, blocks oxidation of air to the blood, malfunctions certain organisms, and initiates in certain cells the slow and irreversible