Is Viral Hemorrhagic Fevers Contagious?
Transmission of Viral Hemorrhagic Fevers from Person to Person
Viral Hemorrhagic Fevers has subtypes that are considered contagious and also has subtypes that are not contagious.
Generally the disease can be transmitted by saliva, air, cough, fecal-oral route, surfaces, blood, needles,
blood transfusions, sexual contact, mother to fetus, etc., but not ALL subtypes.
Viral Hemorrhagic Fevers, although infectious, is not a genetic disease. It is not caused by a defective or abnormal gene.
Transmission of Viral Hemorrhagic Fevers from Animals
The transmission of Viral Hemorrhagic Fevers can be by way of:
- blood feeding insects and can include ticks and mosquitoes.
Discussion about Contagion of Viral Hemorrhagic Fevers:
Viruses causing hemorrhagic fever are initially transmitted to humans when the activities
of infected reservoir hosts or vectors and humans overlap. The viruses carried in rodent
reservoirs are transmitted when humans have contact with urine, fecal matter, saliva, or
other body excretions from infected rodents. The viruses associated with arthropod vectors
are spread most often when the vector mosquito or tick bites a human, or when a human
crushes a tick. However, some of these vectors may spread virus to animals, livestock, for
example. Humans then become infected when they care for or slaughter the animals.
Some viruses that cause hemorrhagic fever
can spread from one person to another, once an initial person has become infected.
Ebola , Marburg, Lassa
and Crimean-Congo hemorrhagic fever viruses are examples. This type of secondary
transmission of the virus can occur directly, through close contact with infected people
or their body fluids. It can also occur indirectly, through contact with objects
contaminated with infected body fluids. For example, contaminated syringes and needles
have played an important role in spreading infection in outbreaks of Ebola
hemorrhagic fever and Lassa fever . (Source: excerpt from Viral Hemorrhagic Fevers: DVRD)
About contagion and contagiousness:
Contagion and contagiousness refers to how easily
the spread of Viral Hemorrhagic Fevers is possible from one person to another.
Other words for contagion include "infection", "infectiousness",
"transmission" or "transmissability".
Contagiousness has nothing to do with genetics
or inheriting diseases from parents.
For an overview of contagion,
see Introduction to Contagion.