Causes of dengue

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Dengue (DENG-gey) fever is a mosquito-borne illness that occurs in tropical and subtropical areas of the world. Mild dengue fever causes a high fever and flu-like symptoms. The severe form of dengue fever, also called dengue hemorrhagic fever, can cause serious bleeding, a sudden drop in blood pressure (shock) and death Dengue fever symptoms are similar to flu symptoms and occur 3-14 days after the mosquito bite. Dengue fever is usually diagnosed when a patient has a high fever and two of the following symptoms: Strong pain behind the eyes. Severe headache. Muscle, bone and joint pain

Dengue is a highly endemic infectious disease of the tropical countries and is rapidly becoming a global burden. It is caused by any of the 4 serotypes of dengue virus and is transmitted within humans through female Aedes mosquitoes. Dengue disease varies from mild fever to severe conditions of deng Dengue (pronounced DENgee) fever is a painful, debilitating mosquito-borne disease caused by any one of four closely related dengue viruses. These viruses are related to the viruses that cause. Dengue has an unexpected attack, viz. a sudden start and these symptoms could be an indicator of its onset. Loss of appetite. Diarrhoea and vomiting. Gum and nose bleedings. Severe joint and muscle pain. Fatigue, Nausea, and Vomiting. A sudden drop in blood pressure. Multiple rashes and wounds on the skin Causes Dengue is caused by the bite of one of the many types of mosquitoes in the genus Aedes Aegypti, which has white stripes on their bodies and legs. It is caused when the mosquito has.

Dengue is common in more than 100 countries around the world. Forty percent of the world's population, about 3 billion people, live in areas with a risk of dengue. Dengue is often a leading cause of illness in areas with risk. Areas with Risk of Dengue. Dengue outbreaks are occurring in many countries of the world. Protect yourself from. 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 Dengue virus is transmitted by infected mosquitoes and can cause dengue fever. The infection can develop into dengue haemorrhagic fever or potentially deadly dengue shock syndrome [1] [2] [3][4][5]

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DHF or dengue fever is a disease caused by one of the four dengue viruses. Dengue fever is an easily contagious disease. The means of transmission of dengue fever itself comes from the bite of Aedes aegypti mosquitoes and Aedes albopictus. Here are The Risk Factors, Causes, Symptoms, Diagnosis, adn Phases of Dengue Feve Dengue causes a wide spectrum of disease. This can range from subclinical disease (people may not know they are even infected) to severe flu-like symptoms in those infected. Although less common, some people develop severe dengue, which can be any number of complications associated with severe bleeding, organ impairment and/or plasma leakage.. Causes Of Dengue Fever. Breakbone fever is caused by any of the four different kinds of DENV (dengue virus). Female mosquitoes bite a person infected with the DENV. It enters the mosquito's body and replicates it. When the infected mosquito bites another person,. Causes of Dengue Viremic transfer of Dengue causing virus from a person infected with Dengue to a healthy host through mosquito bites is a major cause of Dengue. In this, when a mosquito bites an infected person, the virus enters the mosquito through the bloodstream and is later released into the host when the same mosquito bites another perso Dengue is a mosquito-borne illness that occurs in hot areas of the world. Mild dengue fever creates a high fever, redness, and tissue and joint pain.Here are the Dengue Fever Symptoms and treatments:—- However, severely critical other forms of dengue, also called dengue hemorrhagic fever, can cause severe bleeding, seldom decrease in blood pressure

Causes of Dengue. Dengue virus, abbreviated as DENV is responsible for causing Dengue fever. The dengue virus is a single-stranded (RNA) positive strand virus. Dengue fever can also be caused by any one of the four serotypes, namely DENV 1, DENV 2, DENV 3, DENV 4 Dengue is caused by one of four viral serotypes (closely related viruses), designated DEN-1, DEN-2, DEN-3, and DEN-4. These serotypes are members of the Flavivirus genus, which also contains the viruses that cause yellow fever, and can occur in any country where the carrier mosquitoes breed. Viral transmissio

Malaria y dengue - 2021 - ENFERMEDAD

Dengue fever - Symptoms and causes - Mayo Clini

  1. Mild symptoms of dengue can be confused with other illnesses that cause fever, aches and pains, or a rash. The most common symptom of dengue is fever with any of the following: Nausea, vomiting. Rash. Aches and pains (eye pain, typically behind the eyes, muscle, joint, or bone pain) Any warning sign. Symptoms of dengue typically last 2-7 days
  2. It causes temperature, lack of consciousness and decided reduction in white blood cells. This results in, bleeding from the nose, mouth, and internal tissues. Person feels so much pain and headache. Dengue fever is a very harmful caused by dengue virus. Dengue is carried out by female mosquito
  3. Causes and Symptoms of Dengue What is Dengue? What causes dengue fever? Dengue is caused when a mosquito bites an infected person, picks the virus and then bites someone else, thus passing the virus from one person to another. It is a viral infection which causes fever and other symptoms. The disease affects infants, young and adults equally
  4. However, dengue fever causes severe complications in older children and adults. It is known as dengue hemorrhagic fever or dengue shock syndrome (DSS). The following are the commonly seen symptoms of DSS: High fever; Damaged blood vessels. Leakage of blood from the blood vessels. Blood in the vomit, urine, and stool. Damage to the lymphatic system

Dengue fever is a disease spread by the Aedes aegypti mosquito and is caused by one of four dengue viruses. Once you are infected with one of the dengue viruses, you will develop immunity to that. Dengue fever is a mosquito-borne infection that causes severe flu-like symptoms and can be fatal. There is no treatment for dengue fever, and about 40 percent of the world's population is at risk. Causes of Dengue. Dengue fever and dengue haemorrhagic fever spread from human-to-mosquito-to-human by the bite of mosquitoes carrying the dengue virus. The dengue virus belongs to the mosquito group called Flavivirus. This can be divided into four viral stereotypes - DEN-1, DEN-2, DEN-3, and DEN-4 Dengue hemorrhagic fever (DHF) is a specific syndrome that tends to affect children under 10 years of age. This complication of dengue causes abdominal pain, hemorrhage (bleeding), and circulatory collapse . The prevention of dengue fever requires control or eradication of the mosquitoes carrying the virus that causes dengue

What are the symptoms of dengue fever? High fever. Headache. Severe pain in muscles and joints. Swollen lymph nodes. Exhaustion. Rash. The presence of Fever, Rash and Headache is the characteristics of dengue fever. The serious condition of the dengue hemorrhagic fever can also cause bleeding in the eye or nose Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Symptoms typically begin three to fourteen days after infection. These may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. Recovery generally takes two to seven days. In a small proportion of cases, the disease develops into a more severe dengue hemorrhagic fever.

Dengue Fever: Symptoms, Causes, Diagnosis & Treatment

Dengue Fever: Causes, Complications, and Vaccine Strategie

  1. Dengue Haemorrhagic Fever - Symptoms are mild but can gradually worsen within a few days. Dengue Shock Syndrome - This is a severe form of dengue and can even cause death. Dengue Treatment: There is no specific treatment of Dengue fever or cure as Dengue is a virus. Timely intervention can help, depending on how severe the disease is
  2. What is Dengue fever and how is it different from regular flu Regular flu may be due to a simple viral or bacterial infection, amongst other possible causes. Dengue is a more dangerous form and needs a hands-on approach. The World Health Organisat..
  3. It is the season where mosquito-borne diseases are on rise. One of them is dengue fever, which is caused by any of the four related types of Dengue virus (DENV-1 to 4)
  4. Dengue is caused by one of four viral serotypes (closely related viruses), designated DEN-1, DEN-2, DEN-3, and DEN-4. These serotypes are members of the Flavivirus genus, which also contains the viruses that cause yellow fever, and can occur in any country where the carrier mosquitoes breed. Viral transmissio
Dengue and severe dengue

Answer. Several recent studies have investigated the causes of thrombocytopenia in dengue. Laboratory and human studies have suggested a direct correlation between activation and depletion of. Dengue fever is a viral infection caused by the dengue virus (DENV), which is carried by the Aedes aegypti mosquito. There are four types of dengue viruses that can infect four different times, but, once your child is affected by a particular type of dengue virus, they would develop a lifelong immunity against that type History of Dengue (Worldwide) The earliest historical evidence of dengue like illness were found in China in 992 A.D. They described the disease as 'water poison' and noted it to be associated with flying insects. The first account of a disease resembling symptoms of dengue was reported in Philadelphia, in 1780 But dengue is not the only condition that causes a fall in platelets. There are many other disorders where you may encounter this complication. CAUSES BEHIND LOW PLATELET COUNT

Efficient and accurate diagnosis of dengue is of primary importance for clinical care (i.e. early detection of severe cases, case confirmation and differential diagnosis with other infectious diseases), surveillance activities, outbreak control, pathogenesis, academic research, vaccine development, and clinical trials CMI 2.0 Causes of Dengue The reason for choosing the causes of dengue as our sub-topic is that we have to deeply grasp how dengue occurs before we can prevent this from happening again. As dengue is a communicable disease, it is considered one of the most frequent diseases in Malaysia. In the last 50 years there's been a 30-fold increase in dengue cases Dengue Hemorrhagic Fever - This is a severe complication of dengue fever. It can be fatal if left untreated. The symptoms of hemorrhagic fever are similar to dengue fever but the former is more. 4. Anxiety and depression. Surprisingly this is also one of the long-term side effects of dengue fever. According to a study published in the International Journal of Mental Health Systems, a severe change in stress, depression, and anxiety score was seen in people who suffered from dengue fever. Yes, dengue can also impact your mental well-being

Chikungunya virus and dengue cause similar symptoms and are also transmitted by the same mosquito vector. Chikungunya is a viral infection transmitted by the bite of an infected mosquito. The most common symptoms are fever and joint pain, however other symptoms include headache, muscle pain, joint swelling and a rash.. The causes of spread of dengue virus are well known and visits of the foreign experts would add nothing substantial to what we already know except addition of financial burden on the national exchequer. The outbreak of dengue virus can be better understood if one visits different areas of the twin cities and for that matter other cities of. Dengue is primarily an urban disease of the tropics, and the viruses that cause it are maintained in a cycle that involves humans and Aedes aegypti, a domestic, day-biting mosquito that prefers to feed on humans. Infection with a dengue virus serotype can produce a spectrum of clinical illness, ranging from a nonspecific viral syndrome to.

Dengue is a mosquito-borne viral infection. The infection causes flu-like illness, and occasionally develops into a potentially lethal complication called severe dengue. Dengue virus is transmitted by female mosquitoes mainly of the species Aedes aegypti and, to a lesser extent, Ae. albopictus Dengue infection is a leading cause of death and sickness in tropical and subtropical parts of the world. Dengue hemorrhagic fever is a more serious form of dengue infection. Primary symptoms of dengue appear three to 15 days after the mosquito bite and include high fever and severe headache, with severe pain behind the eyes that is apparent when trying to move the eyes 17,630 dengue fever stock photos, vectors, and illustrations are available royalty-free. See dengue fever stock video clips. of 177. aedes aegypti vector dengue infographic mosquito dengue malaria and dengue dengue dengu malaria symtoms mosquitos diseases infographic dengue fever symtoms mosquito aedes. Try these curated collections

Dengue Fever: Symptoms, Causes, and Treatment

Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Symptoms typically begin three to fourteen days after infection. This may inclu.. The causes of this severe dengue condition have been debated for decades, but remain unresolved. A hotly contested hypothesis is that after a 'primary' infection with one serotype, 'secondary' infections by one or more of the other serotypes can precipitate 'antibody dependant enhancement' (ADE) Dengue infections are among the most frequent causes of febrile disease in tropical climates. Infections are caused by a flavivirus transmitted by the Aedes mosquito. Aedes aegypti mosquitos are the main transmitters of Dengue viruses. Since these insects are both diurnal and container breeders, par

2.0 Causes of Dengue The rationale for picking the causes of dengue as our sub-topic is that we have to fully grasp how dengue arises before we can prevent this from happening again. As dengue is a communicable illness, it is considered one of the most prevalent diseases in Malaysia. In the last 50 years there's been a 30-fold increase in dengue cases Most diseases do not cause ADE, but one of the best studied examples of a pathogen that can cause ADE is dengue virus. Dengue virus is one of the most common infections in the world, infecting hundreds of millions and killing tens of thousands of people each year. Unlike viruses like measles or mumps that only have one type, dengue virus has.

The mosquito is a proven vector of chikungunya, Zika, dengue, yellow fever viruses and many other diseases, according to the team of scientists who discovered it Dengue causes flu like symptoms including; high fever, headaches, pain behind the eyes, nausea, vomiting, swollen glands, rash and muscle pain. The symptoms can last for approximately 2-7 days [2,3]. Dengue can potentially develop into a lethal complication known as severe dengue, formerly referred to as dengue heamorraghic fever What is dengue fever? Dengue fever is a mosquito-borne viral infection, common in Southeast Asia, the Indian subcontinent, the Caribbean, Africa, the Americas, Australia and the Pacific islands.. Dengue fever is transmitted by the bite of a mosquito (typically of the species Aedes aegypti) and usually causes flu-like symptoms such as fever, pain in the muscles and general weakness

The Lancet points to dengue's major causes: climate change, relentless and haphazard urbanisation, brisk trade and transit from dengue-infested areas, and poor health infrastructure. As Kathmandu grows and gets more connected to other parts of Asia, dengue spreads. Climate change has been overrated as a cause. Warming temperatures can extend the range of Aedes carriers but other causes. BACKGROUND: Although plasma leakage is the major cause of mortality and morbidity in patients with dengue hemorrhagic fever (DHF), a detailed assessment of the natural course of this process is. Dengue viral infections are one of the most important mosquito borne diseases in the world. They may be asymptomatic or may give rise to undifferentiated fever, dengue fever, dengue haemorrhagic fever (DHF), or dengue shock syndrome. Annually, 100 million cases of dengue fever and half a million cases of DHF occur worldwide. Ninety percent of DHF subjects are children less than 15 years of age Dengue fever is a mosquito-borne viral disease that causes high fevers with headaches and severe muscle and joint pains; a rash may develop. Medical care should be sought if a patient develops high fevers; although some patients may be managed at home, patients with dehydration and or other complications like hemorrhage and shock need medical.

Dengue is a disease caused by the bite of a mosquito infected with any one of four specific Dengue viruses. It causes high fever, severe headache, pain behind the eye, joint pain, and muscle pain. The mosquitos that carry this disease are mainly in tropical areas so travelers may arrive in the. Author summary Dengue is the most common mosquito-borne virus, and a major cause of fever, with an estimated 390 million infections annually. Guatemala, in Central America, has had ongoing dengue transmission since the 1990s. Its national surveillance system monitors outbreaks and seasonal trends of infections to inform public health responses Dengue fever results in a drop of your white blood cells and platelet count, from 1.5-4 lakhs to as low as 20,000-40,000. This happens because the Dengue virus can damage your bone marrow, which is the primary platelet-producing centre of the body and can generate antibodies that destroy the platelets

All four dengue virus serotypes (SE) have related to the spectrum of disease. However, certain genotypes of dengue virus (SE 2 and 3) have been shown to be more virulent and cause massive dengue epidemics . Dengue SE-1 has been associated with the more severe disease during primary dengue infections . However, dengue virus SE-4 has been shown. Description. Dengue is a viral infection caused by four types of viruses (DENV-1, DENV-2, DENV-3, DENV-4) belonging to the Flaviviridae family. The viruses are transmitted through the bite of infected Aedes aegypti and Aedes albopictu s female mosquitoes that feed both indoors and outdoors during the daytime (from dawn to dusk). These.

☛ Dengue Hemorrhagic Fever (DHF) The dengue hemorrhagic fever is the fatal dengue fever type. It leads to complications in the vascular system. These complications cause excessive bleeding from various parts of the body. Symptoms of DHF are as follows Hyderabad: Congenial weather during the ongoing monsoon has started to cause a spurt in cases of dengue and viral fevers in Hyderabad and surrounding districts. In the last one-week, cases of dengue have started to get reported in private nursing homes, clinics, speciality hospitals and Fever Hospital, Nallakunta This causes a severe form of dengue fever also called dengue haemorrhagic fever or dengue shock syndrome. It occurs due to plasma leaking, respiratory distress, fluid accumulation, severe bleeding or organ impairment. The symptoms of dengue haemorrhagic fever occur 3 to 7 days later which are as follows: Bleeding from the gums and nose Severe abdominal pain is a common symptom of dengue fever. The feeling of pain in the stomach can range in intensity from moderate to intense. The pain usually develops in the right upper quadrant of the stomach. The pain can also be exacerbating by the vomiting, which takes a toll on the muscles involved in the straining that vomiting causes

Dengue - Causes, Symptoms, Treatment and its Prevention

Dengue. Dengue is a viral infection spread by mosquitoes. It's widespread in many parts of the world. Mosquitoes in the UK do not spread the dengue virus. It is caught by people visiting or living in Asia, the Americas or the Caribbean. The infection is usually mild and passes after about 1 week without causing any lasting problems In 2019, there were 15,998 reported cases of dengue fever and dengue hemorrhagic fever. This was a steep increase from the number of cases reported in 2018, which was 3,285

Dengue — Level 3 cause. Summary Dengue was responsible for 36 100 deaths (95% UI 9180-44 500) and 2·38 million (0·828-3·27) DALYs in 2019. In southeast Asia in 2019, dengue had the highest DALY burden among all neglected tropical diseases and malaria. Definition The estimates for dengue disease represent cases of clinically apparent. Dengue is a vector-borne disease transmitted by the bite of an infected mosquito. There are 4 serotypes of the virus that causes dengue. These are known as DEN-1, DEN-2, DEN-3, DEN-4. Severe dengue is a potentially lethal complication which can develop from dengue infections. It is estimated that there are over 50-100 million cases of dengue. Dengue is an acute febrile disease caused by the mosquito-borne dengue viruses (DENVs), consisting of four serotypes (DENV 1 to 4), that are members of the flaviviridae family, genus flavivirus ().All four DENV serotypes have emerged from sylvatic strains in the forests of South-East Asia ().DENV is presently the most common cause of arboviral disease globally, and all four serotypes of DENV.

Dengue Fever: Causes, Symptoms & Preventio

Dengue CD

In addition, mosquito bites can cause severe skin irritation through an allergic reaction to the mosquito's saliva - this is what causes the red bump and itching. Mosquito vectored diseases include protozoan diseases, i.e., malaria, filarial diseases such as dog heartworm, and viruses such as dengue, encephalitis and yellow fever Dengue is the major cause of arthropod-borne viral disease in the world. It presents with high fever, headache, rash, myalgia, and arthralgia and it is a self-limiting illness. Severe dengue can occur in some cases resulting in dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS). We present a case of a 32-year-old male patient of high-grade fever, bilateral subconjunctival. Dengue Fever Prevention. NIAID researchers are actively engaged in the search for an effective vaccine against dengue fever. The vaccine approach that is currently been evaluated at NIAID for efficacy against dengue animal models and human trials is a weakened recombinant version (live-attenuated) of the dengue virus

What Is Dengue Fever? Symptoms, Causes, Diagnosis

Some develop dengue hemorrhagic fever after the initial fever declines — a more severe form of the illness that can cause organ damage, severe bleeding, dehydration and even death The increased risk seems small. The vaccine raises the risk of hospitalization after a dengue infection from about 1.1% to 1.6%, the follow-up study from Sanofi found. So out of 1 million kids in. Dengue is a mosquito-borne viral infection characterised by high grade fever, headache, muscle and joint pain, and skin rashes. Dengue transmitted through the bite of Aedes mosquito Dengue Fever Causes: The mosquitoes cause dengue are Aedes mosquitoes, these mosquito-spread four different viruses. We mainly find these mosquitoes near water logging bodies, and when a person goes nearby such water bodies, they might get in contact with the virus which further leads to dengue fever by entering the bloodstreams

REGIONAL: Death #6 Due To Dengue Fever In SVG - Antigua

(PDF) Dengue Fever: Causes, Prevention and Recent Advance

Dengue fever affects the body by causing a high fever and flu-like symptoms. The virus infects your blood and causes a migraine-like headache, rash, achiness, queasiness, tiredness and fever. It can affect the blood, causing mild bleeding of the gums, and you may bruise easily. Once you have recovered from dengue fever, antibodies are left in. Effects. Dengue hemorrhagic fever causes weight loss due to the patient's loss of appetite, vomiting and diarrhea. Decreased appetite may last even after other symptoms have gone. Fluids lost through hemorrhage, vomit and diarrhea upset the electrolyte balance, which often sends the patient into shock. Internal hemorrhaging can also occur.

Dengue Fever: The Causes, 5 Symptoms, And Phases » 202

Dengue is one of the leading causes of significant morbidity and economic burden in different regions across the world including Southeast Asia and the Indian subcontinent . Dengue is a mosquito-borne Flavivirus infection, primarily transmitted by Aedes aegypti followed by Aedes albopictus mosquito and other species of genus Aedes [1, 4] Dengue must be carefully differentiated from preeclampsia during pregnancy. An overlap of symptoms and signs, including thrombocytopenia, impaired liver function, capillary leak, ascites, and decreased urine output may make this clinically challenging. Definitive diagnosis is confirmed via serology Dengue is the most common vector-borne viral disease in the world, causing an estimated 50 to 100 million infections globally each year and 25,000 deaths. In the tropics and subtropics, it is a leading cause of illness and death. The incidence of dengue has jumped sharply in recent decades as the disease has spread into new geographic regions

Dengue and severe dengue - World Health Organizatio

Dengue fever is a disease caused by the dengue virus which is transmitted to humans via the bite of an infective mosquito. There are four different serotypes of dengue virus (DENV1-4) circulating in the world, including Singapore. Hence, individuals can be infected with dengue up to four times. First-time dengue infections can be severe. 2-7 days: Dengue fever is increasing and is a common cause for fever in travelers returning from the tropics or subtropics. Symptoms develop 3-14 days after mo... Symptoms develop 3-14 days after mo.. 86 Dengue Bulletin ΠVol 29, 2005 Etiology of Abdominal Pain in Dengue Fever Introduction India is an endemic country for dengue virus infection. Dengue virus infection may be asymptomatic or present as undifferentiated fever: dengue fever (DF) or dengue haemorrhagic fever (DHF)[1]. Dengue shock syndrome (DSS) may lead to hypovolemic shock Dengue is caused by a virus, which is transmitted by the Aedes aegypti mosquito. Unlike the Culex mosquito, which causes malaria, Aedes is a day time biter and breeds prodigiously in clean water collections like rain water, pools, water collected in tyres, coconut shells etc The prevention of dengue requires control or eradication of the mosquitoes carrying the virus that causes dengue. Educate the people to wear long-sleeved shirts, long pants, socks and shoes when outdoors. 45. Aedes mosquitoes usually bite during the day

Dengue Fever: Causes, Symptoms, Diagnosis And Treatmen

Dengue, a mosquito-borne viral disease, is caused by four distinct, but closely related, serotypes of the virus [1, 2].Recovery from infection by one of these four (DEN-1, DEN-2, DEN-3, and DEN-4) provides the infected person lifelong immunity against that particular serotype and cross-immunity to the other serotypes Background: Dengue is a mosquito borne viral infection. It is the most common arboviral disease globally. In the year 2017, India had 1,53,635 cases of dengue with 226 deaths. Electrolyte disturbances reported in dengue infection are hyponatremia

Dengue: Causes, Symptoms, Types & Treatment Narayana Healt

The CDC estimates more than one-third of the world's population is living in areas at risk for infection by dengue virus which causes dengue fever, a leading cause of illness among people living. Dengue virus infection can cause: 1. Dengue fever 2. Dengue hemorraghic fever (DHF) and 3. Dengue shock syndrome(DSS) Before we read about different kinds of fever and symptoms, we suggest you get a general understanding of dengue fever. What is Dengue Fever Dengue fever is a viral infe

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We provides information on the dengue virus, includes dengue introduction, signs and symptoms, dengue family, Life cycle, Diagnosis, Treatment and Prevention Dengue is a mosquito-borne disease, which is common in tropical and subtropical countries of the world. The climatic conditions of these nations are favorable for the growth and survival of the mosquito that carries the dengue virus. In India, the cases of dengue fever are highest after the monsoon season. In the 1950s, severe PATHOGENICITY/TOXICITY: Dengue virus infection can cause Dengue fever, Dengue hemorrhagic fever (DHF), and Dengue shock syndrome (DSS) Footnote 1. Clinical signs of Dengue fever include influenza type symptoms, fever, rash, myalgias and arthralgias, with a febrile period lasting between 2 and 10 days Footnote 6Footnote 7