What is the hypothesis of dengue?
What is the hypothesis of dengue?
Therefore, an alterna- tive hypothesis was postulated that described dengue hemorrhagic fever (DHF) and/or dengue shock syndrome (DSS) as the result of an inter- action of dengue virus with preexisting parasitic infection(s) in a host [4].
What is dengue Google Scholar?
Dengue is an acute viral illness caused by RNA virus of the family Flaviviridae and spread by Aedes mosquitoes. Presenting features may range from asymptomatic fever to dreaded complications such as hemorrhagic fever and shock.
What is dengue summary?
Dengue is a mosquito-borne viral disease that has rapidly spread to all regions of WHO in recent years. Dengue virus is transmitted by female mosquitoes mainly of the species Aedes aegypti and, to a lesser extent, Ae. albopictus. These mosquitoes are also vectors of chikungunya, yellow fever and Zika viruses.
What is the presentation of dengue?
Clinical findings include nausea, vomiting, rash, aches and pains, a positive tourniquet test, leukopenia, and the following warning signs: abdominal pain or tenderness, persistent vomiting, clinical fluid accumulation, mucosal bleeding, lethargy, restlessness, and liver enlargement.
What is dengue epidemiology?
Dengue is the fastest spreading, mosquito-borne viral infectious disease worldwide, with remarkable morbidity and mortality. In the past decades, profound contributions have been made towards understanding its epidemiology, including disease burden and distributions, risk factors, and control and prevention practices.
When did dengue start in Pakistan?
In 1994, Pakistan reported the first confirmed outbreak of dengue fever. However, the annual epidemic trend and unexpected rise in cases first became apparent in November 2005. Since 2010, Pakistan has reported tremendous numbers of dengue cases, with 2020 alone amounting to 47,120 confirmed cases including 75 deaths4.
How can we prevent dengue essay?
Protect yourself against mosquito bites. Prevent mosquito breeding inside and outside your home. Avoid visiting areas prone to mosquitoes….
- Apply mosquito repellent, ideally one containing DEET.
- Wear long-sleeves and long pants to cover your arms and legs.
- Use mosquito nets while sleeping.
Where did dengue originate?
Where did the dengue viruses first come from? Scientists hypothesize that the dengue viruses evolved in nonhuman primates and jumped from these primates to humans in Africa or Southeast Asia between 500 and 1,000 years ago. The distribution of dengue serotypes in 1970 (a) and 2004 (b).
Who first discovered dengue fever?
History. The first record of a case of probable dengue fever is in a Chinese medical encyclopedia from the Jin Dynasty (266–420) which referred to a “water poison” associated with flying insects. The primary vector, A.
When was first case of dengue virus?
Outbreaks of febrile illnesses compatible with dengue fever have been recorded throughout history, with the first epidemic described in 1635 in the West Indies. In 1779-1780, the first confirmed, reported outbreak of dengue fever occurred almost simultaneously in Asia, North America, and Africa.
How can we prevent dengue in our community?
Use insect repellent, wear long-sleeved shirts and long pants, and control mosquitoes inside and outside your home. Each year, an estimated 400 million people are infected with dengue virus through the bites of infected mosquitoes. About 100 million get sick.
