Illness ranges from a fever with aches and pains to severe liver disease with bleeding and yellowing skin jaundice. It is caused by the yellow fever virus, a member of the family flaviviridae, which is endemic in. A doctor who thought yellow fever was caused by an microorganism carlos finalay. In about 15% of people, within a day of improving the fever comes back, abdominal pain occurs, and liver damage begins causing yellow skin. Mosquitoes transmit the virus back and forth between monkeys, humans or both. In the first 2 months of 2018, brazil reported almost as many cases as in 2017 as a whole. Yellow fever virus is found in tropical and subtropical areas in south america and africa. A major gap in the knowledge about yellow fever is how to manage and treat patients with this disease and with serious vaccineassociated adverse events. Yellow fever yf is an acute viral haemorrhagic disease transmitted by infected mosquitoes, which also act. The free powerpoint templates under this tag cover the topics of laboratory analysis, blood cells, and others. Since december 2016, brazil has faced a large outbreak of yellow fever with ca 1,500 confirmed human cases.
View and download powerpoint presentations on yellow fever ppt. Most people improve after the initial presentation. Ppt dengue fever powerpoint presentation free to download. The patient left hospital 25 days after yellow fever vaccination, free from symptoms. The condition can be prevented with a vaccination and is a very rare cause of illness in travellers.
Allow whole blood to clot at room temperature for a minimum of 30 minutes and centrifuge. Yellow fever faculty of science powerpoint presentation. Introduction epidemiology lifecycle of vector transmission of disease clinical features and diagnosis control introduction. Feb 14, 2017 yellow fever virus yfv was the first proven humanpathogenic virus in 19271. This outbreak reached one of the most populated metropolitan areas in brazil that had been yellow feverfree for more than 70 years. This map is an updated version of the 2010 map created by the informal who working group on the geographic risk of yellow fever. Thanks for watching history of disease greatest achievements of modern medicine.
Yellow fever infection is diagnosed based on laboratory testing, a persons symptoms, and travel history. The designation em ployed and the presentation of m aterial on this map do not imply the expr ession of any. The article describes a series of experiments conducted to explore how yellow fever is propagated from individual to individual and how the contagium is spread. This helps you give your presentation on dengue fever in a conference, a school lecture, a business proposal, in a webinar and business and professional representations. This malaria free powerpoint theme is royalty free and could be used as themes and backgrounds for malaria, pest, medical, parasitic, larvae, sucker, disease, epidemic, yellow. Yellow fever in the 1870s focusing on the outbreak in west tn. This template can be used by teachers, professors, students and other presenters. Yellow feverassociated neurotropic disease previously known as post vaccine encephalitis, occurs 721 days after vaccination. The clinical presentation is divided into 3 stages. Find powerpoint presentations and slides using the power of, find free presentations research about yellow fever ppt. Efficacy yellow fever yf 17d vaccine is a safe and highly efficacious vaccine gives a tenyear or more immunity from the virus has a 70year history since 1937 of safe and effective use is an ideal vector to deliver heterologous genes from other medically important flaviviruses.
The template is suitable for presentations about the insects, species feed on the blood, malaria, yellow fever, zika virus, etc. More severe disease can be confused with severe malaria, leptospirosis, viral hepatitis especially fulminant forms, other hemorrhagic fevers, infection with other flaviviruses e. Yellow fever vaccineassociated viscerotropic disease yelavd yelavd is a severe illness similar to wildtype yf disease, with vaccine virus proliferating in multiple organs and often leading to multiorgan dysfunction or failure and occasionally death. Scribd is the worlds largest social reading and publishing site.
The virus is spread to people by the bite of an infected mosquito. Yellow fever is a serious viral infection that is spread by certain types of mosquito. The disease occurs now only in africa and central and south america, although historically, large outbreaks occurred in europe and north america. May 17, 2017 yellow fever is a hemorrhagic condition that can lead to a high fever, bleeding into the skin, and cell death in the liver and kidneys.
Ppt yellow fever virus powerpoint presentation, free. She did not receive a yellow fever vaccine because gambia did not require it of travelers. The free mosquito powerpoint template has a yellow background with an image of the mosquito and that fits with the topic. Immunityimmunity one attack ofone attack of yellow fever givesyellow fever gives lifelonglifelong immunity. Louis encephalitis, japanese encephalitis, and yellow fever. Lassa fever is a viral illness that occurs in west africa. Yellow fever virus yfv is maintained in a natural cycle involving treehole breeding mosquitoes and nonhuman primates hosts. Ppt approach to fever powerpoint presentation free to. It was the first illness shown to be transmissible by filtered human serum and transmitted by mosquitoes, by walter reed around 1900. Powerpoint is the worlds most popular presentation software which can let you create professional dengue fever powerpoint presentation easily and in no time. This malaria free powerpoint theme is royalty free and could be used as themes and backgrounds for malaria, pest, medical, parasitic, larvae, sucker, disease, epidemic, yellow fever and such topics. History yellow fever is so named because it can cause jaundice, which makes a persons skin and the whites of their eyes appear to be yellow. Cdc travelers health is pleased to announce that yellow fever.
Or, you can follow along using the article instead. Of the 18 000 000 people who contract this disease, full recovery is typical. Author summary yellow fever yf is a viral hemorrhagic disease that affects humans as well as several species of nonhuman primates, especially new world monkeys found in south america. In the slave trade of the 1500s, it was spread to the new world. Yellow fever centers for disease control and prevention. In 1881, carlos juan finlay, a physician in havana, first proposed that yellow. Activity of aspartate and alanine aminotransferases had decreased. Yellow fever viruses have a diameter of 4060 nanometers. Displaying powerpoint presentation on chagas disease mrs deweys blog available to view or download. Free download dengue fever powerpoint presentation. Histopathology of liver from a hamster infected by the jimenez strain of yellow fever virus postinfection day 6. Download malaria free editable powerpoint template now as you can use this malaria free ppt template freely as sample.
In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains particularly in the back, and headaches. Causes, symptoms, daignosis, prevention and treatment west nile fever is a zoonotic disease which is a flavivirus related to the viruses that cause st. Yellow fever is a hemorrhagic condition that can lead to a high fever, bleeding into the skin, and cell death in the liver and kidneys. Thousands of new, highquality pictures added every day. Disease caused by a virus gets its name because it causes liver failure turning ill people yellow.
Mar 15, 2007 yellow fever is a viral hemorrhagic fever with high mortality that is transmitted by mosquitoes. The yellow fever virus is an arbovirus of the flavivirus genus. Yellow fever powerpoint by bhenderson teachers pay teachers. Yellow fever most likely came from africa, evolving from other similar viruses. Download yellow fever faculty of science ppt for free. Overview the pathogen that causes yellow fever is the yellow fever virus, which has a spherical shape.
The pathogen that causes yellow fever is the yellow fever virus, which has a. Brief history of yellow fever, 1793 cont wet spring, stagnant pools of h2o hot temperatures tons of mosquitoes refugees with yellow fever fleeing revolution in santo domingo mosquitoes bit the refugees, got yellow fever, then bit the citizens of philadelphia. There is no specific treatment for yellow fever, but the symptoms can be treated while your body fights off the virus. Ppt yellow fever powerpoint presentation free to download id. Causes smoking more common about 8090% of all emphysema cases. Yellow fever is a mosquitoborn viral disease that occurs in tropical and. These mosquitoes thrive in and near human habitations where they breed in even the cleanest water.
The yellow fever virus is found in tropical and subtropical areas of africa and south america. In 1793 philadelphia, sixteenyearold matilda cook, separated from her sick mother, learns about perseverance and selfreliance when she is forced to cope with the horrors of a yellow fever epidemic. If so, share your ppt presentation slides online with. Yellow fever is a reemerging viral hemorrhagic disease transmitted by infected aedes mosquitoes. It is spread through contact with infected rodents or their droppings, or through close contact with a person who is sick with lassa fever. After an incubation period of 36 days, most individuals with yellow fever have a mild, selflimited illness consisting of fever, headache, myalgia, and malaise.
Because yellow fever is an epizootic disease, the potential for human outbreaks will always remain when vaccination programs are not maintained. Free mosquito powerpoint template prezentr powerpoint. She returned to belgium where she entered the hospital with. Who fact sheet about yellow fever, an acute viral haemorrhagic disease. Displaying powerpoint presentation on yellow fever faculty of science available to view or download. Ppt yellow fever powerpoint presentation free to download. Ppt yellow fever powerpoint presentation, free download. Use the powerpoint to learn about what yellow fever is, what caused the 1878 epidemic in memphis, and what the positive and negative effects of the outbreak were.
From 1793 to 1822 yellow fever was one of the most dreaded diseases in the port citys in the u. Background on yellow fever history of yellow fever what type of virus is it. People get infected with the virus after being bitten by an infected mosquito. Yellow fever vaccinations with french neurotropic vaccine and. Humans and monkeys are most commonly infected with the yellow fever virus. It usually causes mild symptoms, including slight fever, weakness, and headache. Lassa fever in nigeria watch level 1, practice usual. Yellow fever is caused by a virus that is spread by the aedes aegypti mosquito.
The yellow fever vaccine has a long record of safety, but clinicians should be aware of two severe complications from the vaccine. Yellow fever virus yfv was the first proven humanpathogenic virus in 19271. Yellow fever is difficult to diagnose, especially during the early stages. Free mosquito powerpoint template prezentr powerpoint templates. Yellow fever is a mosquitoborn viral disease that occurs in tropical and subtropical areas. Treatment of yellow fever by supportive care is essentially ineffective, and improvements in intensive care have not changed the 50% lethality rate. A free powerpoint ppt presentation displayed as a flash slide show on id. Between 2016 and 2018, rapid expansion of a severe sylvatic yellow fever virus outbreak occurred in southeastern brazil. Yellow fever is caused by yellow fever virus, an enveloped rna virus 4050 nm in width, the type species and namesake of the family flaviviridae. This free, online course is designed to provide a variety of healthcare professionals with comprehensive training on yellow fever disease and yellow fever vaccine. Hello, do you have to teach about the impact of yellow fever on tennessee. Jun 21, 2019 after an incubation period of 36 days, most individuals with yellow fever have a mild, selflimited illness consisting of fever, headache, myalgia, and malaise. This case underlines the fact that in elderly patients yellow fever vaccination might cause severe and longterm sideeffects. Find yellow fever stock images in hd and millions of other royaltyfree stock photos, illustrations and vectors in the shutterstock collection.
Yellow fever is an acute mosquitotransmitted viral infection which is endemic and occasionally epidemic in many countries of tropical africa and south america. Yellow fever frequently asked questions what is yellow fever. Prnt can be performed to measure virusspecific neutralizing antibodies to zika virus, but neutralizing antibodies may still yield crossreactive results in a person who was previously infected with another flavivirus, such as dengue, or has been vaccinated against yellow fever or japanese encephalitis. The aedes aegypti is the mosquito that is known to carry the virus. Aedes aegypti also called the yellow fevermosquito. Find yellow fever stock images in hd and millions of other royalty free stock photos, illustrations and vectors in the shutterstock collection. To help determine whether you have yellow fever, the doctor will want to know exactly where you have been travelling and what symptoms you have.
Red top or serum separator tube sst, a redgray top vacutainer tube. Yellow fever remains a major public health concern in subsaharan africa and tropical south america despite the availability of an effective vaccine that can have tremendous impact on disease control. This outbreak reached one of the most populated metropolitan areas in brazil that had been yellow fever free for more than 70 years. Since the initial cases of yelavd were published in 2001, 100 confirmed and suspected. The adobe flash plugin is needed to view this content. Surveillance for yellow fever virus in nonhuman primates. On the sixth day after arriving in gambia, she became acutely ill with high fever, chills, headache, back and muscle pain. Download chagas disease mrs deweys blog ppt for free. Ppt yellow fever powerpoint presentation, free download id. Its mainly found in subsaharan africa, south america and parts of the caribbean. There are several slides introducing what yellow fever is, the impact on tennesseans in the 1800s, how the epidemic led to african americans being elected to the general assembly, a note. A blood test will be needed to confirm the diagnosis. In the second stage, which may occur 34 days after onset, the patient may go into temporary remission and symptoms subside. We searched pubmed up to oct 11, 2016, for publications about any yellow fever virus outbreaks in angola and the democratic republic of the congo dr congo, yellow fever virus outbreaks since the beginning of 2015, and the spatial spread of yellow fever virus, without any language restrictions.
Biochemists, and general physicians may find these layouts beneficial in presenting their research on topics, such as. Pdf pathogenesis and pathophysiology of yellow fever. Spread of yellow fever virus outbreak in angola and the. What is yellow fever acute viral disease caused by an aborvirus rna virus slideshow 1267029 by. Yellow fever virus and yellow fever vaccine likelihood of. Yellow fever allison gregg general history thousands of years old originated in africa brought to the u. The yellow in the name reflectsthe development of jaundice.