Guatemala, in Central America, has had ongoing dengue transmission since the 1990s. The highest numbers of dengue cases were reported during the 29th week of 2017. Records of dengue-like illness date back more than 200 years; the viral etiology of dengue virus was established in the 1940s [ 1,2 ]. What is dengue? • Dengue-like illness: illness defined by fever as reported by the patient or healthcare provider. Dengue is widespread throughout the tropics, with risk factors influenced by local spatial variations of rainfall, temperature, relative humidity, degree of urbanization and quality of vector control services in urban areas. Major changes in the epidemiology of dengue virus infections began after World War II, and geographic expansion of transmission has continued to date. The number of cases of dengue haemorrhagic fever (DHF) in the same period was 106 037. Infection with any one of the four dengue virus serotypes can cause disease that ranges from a mild febrile illness through to haemorrhagic fever and shock. In the Western Hemisphere, the Aedes aegypti mosquito is the most important transmitter or vector of dengue … Transmitted to humans through the bites of infected female mosquitoes. • The first evidence of occurrence of dengue fever in the country was reported in 1956 from Vellore district in Tamil Nadu. Only 9 countries had experienced severe dengue epidemics before 1970; however, at present, dengue fever has affected more than 100 countries in tropical and subtropical regions (Organization, 2016). The EU/EEA notification rate in 2018 was 0.4 cases per 100 000 population. • Severe dengue: dengue with any or more of the following scenarios: o Severe plasma leakage evidenced by hypovolemic shock and/or extravascular fluid accumulation with respiratory distress possibly with a abnormally high hematocrit value. EPIDEMIOLOGY OF DENGUE DR. MAHESWARI JAIKUMAR maheswarijaikumar2103&@gmail.com 2. albopictus) mosquito. Study area. DENGUE VIRUS 4. Dengue is common in more than 100 countries around the world. In the Americas alone, the incidence rose from 250,000 cases of dengue fever and 7,000 cases of dengue hemorrhagic fever in 1995 to more than 890,000 cases of dengue fever … Ladies and Gentlemen, Today it is my pleasure to be here to present to you an interesting topic about the epidemiology of dengue fever in the world. Dengue (DENG-gey) fever is a mosquito-borne illness that occurs in tropical and subtropical areas of the world. Transmission. BACKGROUND: Dengue fever, caused by dengue virus (DENV), has become one of the most important mosquito-borne viral diseases with a steady rise in global incidence, including the Sudan. Epidemiology, Prevention and Control of Dengue Fever in Hong Kong Purpose The purpose of this document is to update the epidemiology, preventive and control measures of dengue fever (DF) and provide recommendations on combating the disease in Hong Kong. Mairuhu, Eric C.M. Dengue is a viral disease, transmitted by the infective bite of a particular mosquito known as Aedes Aegypti. Ninety percent of DHF subjects are children less … It occurs in two forms: Classical Dengue fever also known as “break bone” fever and Dengue Haemorrhagic Fever (DHF) which is life threatening. Dengue is a leading cause of illness and death in tropical and subtropical areas. Our analysis revealed that among the clinically suspected dengue fever patients, the estimated prevalence of laboratory-confirmed dengue infection was 38%. Dengue viral infections are one of the most important mosquito borne diseases in the world. Dengue fever is a viral infection that can cause a wide range of symptoms, including life-threatening illness, milder flu-like illness, or sometimes no symptoms at all. Highest number of cases reported during the month of October. They may be asymptomatic or may give rise to undifferentiated fever, dengue fever, dengue haemorrhagic fever (DHF), or dengue shock syndrome. Dengue is one of the newest emerging diseases in Nepal with increasing burden and geographic spread over the years. This study is a retrospective analysis that covers the last 14 years (2006–2019) of reported dengue cases from Epidemiology Diseases … A prospective study of dengue fever (DF) and dengue hemorrhagic fever (DHF) was conducted in a cohort of adult volunteers from two textile factories located in West Java, Indonesia. The epidemic of dengue fever started post monsoon in august when the mosquito population was high. Dengue is a disease caused by any one of four closely related dengue viruses. • The first dengue hemorrhagic fever(DHF) outbreak occurred in Calcutta in 1963. 1) and had a population of 13.08 million in 2014 [].As the capital of Guangdong Province, Guangzhou serves as the political, economic, scientific, educational, tourism and cultural centre in southern China. Dengue, a mosquito-borne virus prevalent throughout the tropics and subtropics, infects an estimated 390 million people every year . This increase is believed to be due to a combination of urbanization, population growth, increased international travel, and global warming. is known as one of the most important arthropod-borne Available data has indicated an increasing trend of dengue hemorrhagic fever incidence in Indonesia over the past 50 years. The authors of the paper are professor Anne Murray and colleagues, professor Murray works… Dengue fever has since spread with cyclical outbreaks occurring every 3–5 years. EPIDEMIOLOGY OF DENGUE 1. Epidemiology. Dengue fever is a re-emerging, mosquito-borne, viral disease with over 3.9 billion individuals at risk of infection worldwide 1.The disease is endemic in … The first reports of a disease with signs and symptoms compatible with dengue fever in Brazil, date back to 1846 [].Late 1981 and early 1982, a first dengue outbreak, caused by DENV-1 and DENV-4 was characterized in Brazil, which was restricted to the city of Boa Vista, Roraima (RR) in the north region []. Dengue is endemic throughout the tropics and subtropics and is a leading cause of In the same period in 2015, there were 1680 cases of severe dengue fever and 21,155 cases of dengue fever [22, 23]. Descriptive Epidemiology. This paper was published in the Clinical Epidemiology Journal of England in August 2013. Dengue. • The first recorded epidemic of clinically Dengue like illness occurred at Madras in 1780. Background 2. Dengue infection can cause a spectrum of illness ranging from mild, undifferentiated fever to illness up to 7 days' duration with high fever, severe headache, retro-orbital pain, arthralgia and rash, but rarely causing death. While the majority of infections are mild or asymptomatic, the more severe forms of dengue infection—dengue shock syndrome (DSS) and dengue hemorrhagic fever (DHF)—can result in organ failure or death . The main objective of this study was to explore the epidemiological patterns of dengue since its first outbreak (2006) to 2019 in Nepal. Dengue Haemorrhagic Fever (DHF), a deadly complication, includes haemorrhagic tendencies, thrombocytopenia and plasma leakage. DF. Human being develops disease after 5 – 6 days of being bitten by an infective mosquito. Dengue Bulletin – Volume 30, 2006 1 Changing Epidemiology of Dengue Haemorrhagic Fever in Indonesia Tatty E. Setiatia, Jiri F.P. Guangzhou, the city most affected by dengue in mainland China, is located on the south-east coast of China (22°26′–23°56′N, 112°57′–114°3′E, Fig. Its national surveillance system monitors outbreaks and seasonal trends of infections to inform public health responses. Forty percent of the world’s population, about 3 billion people, live in areas with a risk of dengue. There have been multiple epidemics of dengue fever in the US in the 18th to early 20th centuries. Dengue fever, caused by dengue virus (DENV), has become one of the most important mosquito-borne viral diseases with a steady rise in global incidence, including the Sudan. The uploader spent his/her valuable time to create this Dengue Fever powerpoint presentation slides, to share his/her useful content with the world. To provide a national incidence rate and case fatality rate of dengue hemorrhagic fever in Indonesia through an analysis of the National Disease Surveillance database from the Directorate General of Disease Prevention and Control of Ministry of Health. Sporadic cases and frequent acute febrile illness outbreaks, compatible with Dengue fever, have been reported in El-Gadarif State, Sudan. As of 2010 dengue fever is believed to infect 50 to 100 million people worldwide a year with 1/2 million life-threatening infections. After an absence of 56 years, dengue fever has re-emerged in US states such as Texas and Hawaii; in 2016, there were 990 laboratory-confirmed cases reported in the US (an incidence of … For 2018, 27 countries reported 2 191 cases of dengue, of which 2 033 (92.8%) were confirmed. Dengue fever is a viral infection which is transmitted to humans through the bites of infected Aedes mosquitoes. Results of the three-year study offer hope in the global battle against an illness that sickens millions annually. Fourteen autochthonous dengue cases were reported from continental Europe by France (n=8) and Spain (n=6). Dengue Fever. The data from the last Epidemiological Bulletin of the Ministry of Health showed that by the 49th EW of 2016, 826 cases of severe dengue fever and 8166 dengue fever cases had been confirmed . Dengue viruses are spread to people through the bite of an infected Aedes species (Ae. Incubation period is 4-10 days. A short report on epidemiology of dengue fever in Pakistan supports this study because it showed that the mean age detected is 32 years [4, 6]. Mild dengue fever causes a Therefore, this review is focused on untangling the molecular epidemiology of Dengue, Yellow fever, Zika and Chikungunya due to their recent epidemics in Latinamerica but provides an update on the geographical distribution globally of these viral variants, and outlines the need for further understanding of the genotypes/lineages assignment. Aedes aegypti mosquitoes breed in urban habitats and man-made containers. Dengue epidemics in Malaysia have been observed to occur every 5 to 8 years, that is in 1974, 1982, 1987, 1991, 1998 and have been increasing since 2001 with the highest number of dengue cases was reported in 2008, totalling 49,335 cases with an incidence rate of 177/100,000 population. Latest Disease Trends, Approximately 29.5 % of dengue cases were reported from the Western province. Volunteers in the cohort were bled every three months and were actively followed for the occurrence of dengue (DEN) disease. Annually, 100 million cases of dengue fever and half a million cases of DHF occur worldwide. Overview on dengue epidemics in Brazil. 3. Before 1970, only nine countries had experienced severe dengue epidemics. This is a 4.3 fold higher than the average number of cases for the same period between 2010 and 2016, and the monthly number of cases exceeds the mean plus three standard deviations for each of the past six months. It was estimated by WHO that 50–100 million dengue infections occur annually, with a 30-fold increase in global incidence observed over the past 50 years ( WHO, 2012 ). Dengue is often a leading cause of illness in areas with risk. It dramatically increased in frequency between 1960 and 2010, by 30 fold. DENGUE Dengue fever is a self limiting disease caused by Dengue viruses (ARBOVIRUS). Dengue fever cut by 77% in groundbreaking mosquito trial. Executive summary. Dengue fever is a disease caused by one of four related viruses transmitted to humans by the bite of an infected mosquito. From 1 January to 7 July 2017, the Epidemiology Unit of the Ministry of Health (MoH) Sri Lanka reported 80 732 dengue fever cases, including 215 deaths. The disease can have severe manifestations, including dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS). Total of 31162 suspected dengue cases for the year 2020 and 7998 suspected dengue cases were reported to the Epidemiology Unit from all over the island from January 2021 to up to now, . Wagenaarb, Martijn D. de Kruif b, Albert T.A. download pdf. Aedes aegypti mosquitoes are the primary vector of Dengue Fever. Sporadic cases and frequent acute febrile illness outbreaks, compatible with Dengue fever, have been reported in El-Gadarif State, Sudan. This ppt presentation uploaded by internetsurfing in Health & Wellness ppt presentation category is available for free download,and can be used according to your industries like finance, marketing, education, health and many more. With the population of 93 million as of 2015 and the highest population density in the world of about 263 people per square kilometre, Vietnam is one of the countries with a high incidence of dengue fever. There was no community-based epidemiological study reporting the incidence of dengue fever. From 2001 to 2007, more than 30 countries of the Americas notified a total of 4 332 731 cases of dengue . The viruses are transmitted to humans by the bite of an infected mosquito. The biggest outbreak occurred in 2002 with more than 1 million reported cases. The burden of dengue was also variable in studies conducted in different settings. Author summary Dengue is the most common mosquito-borne virus, and a major cause of fever, with an estimated 390 million infections annually. aegypti or Ae.
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