How fever works How does fever happen? Once endogenous pyrogens have been produced by the primary immune response‚ they must travel to the brain to actually induce fever. After their increased production by activated immune cells‚ cytokines such as IL-1‚ IL-6‚ and TNF are distributed throughout the body through the blood‚ as they are all soluble proteins. Now‚ then‚ these cytokines must have a target to signal and cause a reaction. PGE As it plays a central role in thermal regulation‚ it
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dengue hemorrhagic fever‚ a rare complication characterized by high fever‚ damage to lymph and blood vessels‚ bleeding from the nose and gums‚ enlargement of the liver‚ and failure of the circulatory system. The symptoms may progress to massive bleeding‚ shock‚ and death. This is called dengue shock syndrome (DSS). People with weakened immune systems as well as those with a second or subsequent dengue infection are believed to be at greater risk for developing dengue hemorrhagic fever. Diagnosing Dengue
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faeces. The bacterium can be spread to a person if they eat food or drink beverages that have been handled by a person who is shedding S. Typhi. It may also be caused by contaminated water‚ which becomes infected from sewerage. Therefore‚ typhoid fever is more common in developing countries where hygiene is poor thus spreading the disease and allowing for water to become contaminated easily. Once the Typhoid bacterium enters the body‚ it multiplies and spreads to
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moist storage containers‚ rather than relying on the seasonal patterns of rainfall. Another species‚ Aedes albopictus (the "Tiger mosquito")‚ is widespread throughout Asia. Both mosquitoes are now well established in urban centers. Accordingly‚ dengue fever is now a disease of urbanized‚ developed areas‚ rather than rural‚ unpopulated regions. The dengue virus is passed to humans exclusively by the bite of mosquito in search of a blood meal. This mode of transmission makes the dengue virus an arbovirus
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Comparing yellow fever and scarlet fever |Yellow Fever (viral infection) |Scarlet fever (streptococcal infection) | |Causative factors: |Causative factors: | |Yellow fever virus (flavivirus group) |Streptococcus bacteria | |
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Title: Yellow Fever Organizational Pattern: Chronological General Purpose: To inform Specific Purpose: Teach the audience general facts about yellow fever throughout the years Introduction: When most of you hear Yellow Fever‚ you probably think of a type of cold or flu‚ however what you may not consider is that it can be a very serious illness which can even lead to death. Transition: Let’s start with the basics… I. The Basics http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002341/ A. What
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INTRODUCTION Dengue fever Dengue fever (UK /ˈdɛŋɡeɪ/ or US /ˈdɛŋɡiː/)‚ also known as breakbone fever‚ is an infectious tropical diseasecaused by the dengue virus. Symptoms include fever‚headache‚ muscle and joint pains‚ and a characteristicskin rash that is similar to measles. In a small proportion of cases the disease develops into the life-threateningdengue hemorrhagic fever‚ resulting in bleeding‚ low levels of blood platelets and blood plasma leakage‚ or into dengue shock syndrome‚ where
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Dengue fever is a disease caused by one of a number of viruses that are carried by mosquitoes. These mosquitoes then transmit the virus to humans. The virus that causes dengue fever is called an arbovirus‚ which stands for arthropod-borne virus. Mosquitoes are a type of arthropod. In a number of regions‚ mosquitoes carry this virus and are responsible for passing it along to humans. These regions include the Middle East‚ the far East‚ Africa‚ and the Caribbean Islands. In these locations‚ the
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know that the yellow fever is estimated to infect 200‚000 people a year causing 30‚000 deaths. 90% of these deaths are in Africa. In Fever 1793‚ there is an outbreak of the yellow fever in the newly born country now called the United States of America. The main character‚ Matilda is very childish and lazy when it comes to work around the house. When her mother is diagnosed with the fever‚ her whole life and future is filled with fear. After she personally experiences the fever and survives‚ she starts
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Its Prevention Dengue fever is a disease caused by a family of viruses that are transmitted by mosquitoes. It is an acute illness of sudden onset that usually follows a benign course with symptoms such as headache‚ fever‚ exhaustion‚ severe muscle and joint pain‚ swollen glands (lymphadenopathy)‚ and rash. The presence (the "dengue triad") of fever‚ rash‚ and headache (and other pains) is particularly characteristic of dengue. Other signs of dengue fever include bleeding gums‚ severe pain
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