1. White pleurisy was found (b) Among the employees of cement industry. Exposure to cement dust can lead to inflammation of the pleura, known as white pleurisy, among workers in this industry. Inhalation of cement particles over time can irritate the lungs and cause respiratory problems. Although varioRead more

    White pleurisy was found (b) Among the employees of cement industry. Exposure to cement dust can lead to inflammation of the pleura, known as white pleurisy, among workers in this industry. Inhalation of cement particles over time can irritate the lungs and cause respiratory problems. Although various industries pose occupational health risks, cement industry workers are particularly susceptible to respiratory issues due to prolonged exposure to dust and particulate matter generated during cement manufacturing processes. Implementing proper ventilation and respiratory protection measures is crucial to mitigate the risk of white pleurisy and other respiratory ailments among cement industry employees.

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  2. The inventor of the smallpox vaccine is Edward Jenner. In 1796, Jenner pioneered the development of the smallpox vaccine, a breakthrough in the history of medicine. Jenner's innovation involved using material from cowpox lesions to inoculate individuals against smallpox, a deadly viral disease. ThisRead more

    The inventor of the smallpox vaccine is Edward Jenner. In 1796, Jenner pioneered the development of the smallpox vaccine, a breakthrough in the history of medicine. Jenner’s innovation involved using material from cowpox lesions to inoculate individuals against smallpox, a deadly viral disease. This process, known as vaccination, led to the eradication of smallpox globally. Sir Frederick Grant Banting (a) discovered insulin, Sir Alexander Fleming (b) discovered penicillin, and Louis Pasteur (d) made significant contributions to microbiology, including the development of vaccines for rabies and anthrax, but he did not invent the smallpox vaccine.

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  3. The carrier of Kala-azar, also known as visceral leishmaniasis, is primarily the (a) Anopheles mosquito. This vector transmits the parasitic protozoa Leishmania donovani, responsible for the disease. When an infected Anopheles mosquito bites a human, it injects the Leishmania parasites into the blooRead more

    The carrier of Kala-azar, also known as visceral leishmaniasis, is primarily the (a) Anopheles mosquito. This vector transmits the parasitic protozoa Leishmania donovani, responsible for the disease. When an infected Anopheles mosquito bites a human, it injects the Leishmania parasites into the bloodstream, leading to infection. Unlike the Culex mosquito (b), which is associated with diseases such as West Nile virus, and the C.C. fly (c), implicated in transmitting sleeping sickness, the Anopheles mosquito is the specific vector for Kala-azar transmission. The Cicata fly (d) is not known to transmit Kala-azar or any similar disease.

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  4. Cadmium pollution is associated with (d) Itai Itai disease. This painful bone ailment emerged in Japan due to cadmium contamination from industrial sources. Prolonged exposure to cadmium-laden water and soil led to severe bone pain, skeletal deformities, and weakened bones. Unlike Minamata disease (Read more

    Cadmium pollution is associated with (d) Itai Itai disease. This painful bone ailment emerged in Japan due to cadmium contamination from industrial sources. Prolonged exposure to cadmium-laden water and soil led to severe bone pain, skeletal deformities, and weakened bones. Unlike Minamata disease (a), which stems from mercury poisoning, and Black foot disease (b), caused by arsenic contamination, Itai Itai is directly linked to cadmium exposure. Dyslexia (c) is a learning disorder unrelated to heavy metal pollution. Addressing cadmium pollution requires stringent environmental regulations to mitigate its harmful effects on human health and ecosystems.

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  5. The painful bone disease 'Itai Itai' was first discovered in (a) Japan. It emerged in the mid-20th century in the Toyama Prefecture. The disease resulted from cadmium poisoning due to industrial pollution. Cadmium-contaminated wastewater discharged from local mining operations contaminated rice fielRead more

    The painful bone disease ‘Itai Itai’ was first discovered in (a) Japan. It emerged in the mid-20th century in the Toyama Prefecture. The disease resulted from cadmium poisoning due to industrial pollution. Cadmium-contaminated wastewater discharged from local mining operations contaminated rice fields and water sources, leading to widespread exposure. ‘Itai Itai’ disease caused excruciating pain, skeletal deformities, and weakened bones, earning its name from the Japanese expression for “ouch, ouch.” This tragic episode highlighted the devastating health consequences of environmental pollution and spurred efforts to regulate industrial waste disposal to prevent similar incidents globally.

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