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Capitol Medical Center College
College of Nursing
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I. Introduction
Dengue Fever is caused by one of the four closely related, but antigenically distinct,
virus serotypes Dengue type 1, Dengue type 2, Dengue type 3, and Dengue type 4 of
the genus Flavivirus and Chikungunya virus. Infection with one of these serotype provides
immunity to only that serotype of life, to a person living in a Dengue-endemic area can have
more than one Dengue infection during their lifetime. Dengue fever through the four
different Dengue serotypes are maintained in the cycle which involves humans and
Aedes aegypti or Aedes albopictus mosquito through the transmission of the viruses to
humans by the bite of an infected mosquito. The mosquito becomes infected with the
Dengue virus when it bites a person who has Dengue and after a week it can transmit the
virus while biting a healthy person. Dengue cannot be transmitted or directly spread from
person to person. Aedes aegypti is the most common aedes specie which is a domestic, day-
biting mosquito that prefers to feed on humans.
INTUBATION PERIOD: Uncertain. Probably 6 days to 10 days
PERIOD OF COMMUNICABILITY: Unknown. Presumed to be on the 1st week of illness when
virus is still present in the blood.
CLINICAL MANIFESTATIONS:
First 4 days:
>febrile or invasive stage --- starts abruptly as high fever, abdominal pain and headache;
later flushing which may be accompanied by vomiting, conjunctival infection and epistaxis
4th to 7th day:
>toxic or hemorrhagic stage --- lowering of temperature, severe abdominal pain, vomiting
and frequent bleeding from GIT in the form of melena; unstable BP, narrow pulse pressure
and shock; death may occur; vasomotor collapse
7th to 10th day:
>convalescent or recovery stage --- generalized flushing with intervening areas of blanching
appetite regained and blood pressure already stable
MODE OF TRANSMISSION:
Dengue viruses are transmitted to humans through the infective bites of female Aedes
mosquito. Mosquitoes generally acquire virus while feeding on the blood of an infected
person. After virus incubation of 8-10 days, an infected mosquito is capable, during probing
and blood feeding of transmitting the virus to susceptible individuals for the rest of its life.
Infected female mosquitoes may also transmit the virus to their offspring by
transovarial (via the eggs) transmission.Humans are the main amplifying host of the

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Capitol Medical Center College College of Nursing A Case Study DENGUE FEVER Presented to: Mrs. Glenda Fadri In Partial Fulfilment of the Requirements For the Degree of Bachelor of Science in Nursing TANCIOCO, MARK ANDREW TANDOC, JOHANNA ELAINE TIBANGEN, DOLLY ANNE Timpug, Maria Rosanna tINDOY, NEIL JASON 1st Semester SY 2009-2010 I. Introduction Dengue Fever is caused by one of the four closely related, but antigenically distinct, virus serotypes Dengue type 1, Dengue type 2, Dengue type 3, and Dengue type 4 of the genus Flavivirus and Chikungunya virus. Infection with one of these serotype provides immunity to only that serotype of life, to a person living in a Dengue-endemic area can have more than one Dengue infection during their lifetime. Dengue fever through the four different Dengue serotypes are maintained in the cycle which involves humans and Aedes aegypti or Aedes albopictus mosquito through the transmission of the viruses to humans by the bite of an infected mosquito. The mosquito becomes infected with the Dengue virus when it bites a person who has Dengue and after a week it can transmit the virus while biting a healthy person. Dengue cannot be transmitted or directly spread from person to person. Aedes aegypti is the most common aedes specie which is a domestic, day-biting mosquito that prefers to feed on humans. INTUBATION PERIOD: Uncertain. Probably 6 days to 10 days PERIOD OF COMMUNICABILITY: Unknown. Presumed to b ...
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