Argentine hemorrhagic fever
This is an acute viral disease that has some natural foci.
Pathogen - Junin virus (named after the city,which registered the first cases of the disease) refers to arenaviruses, which include pathogens Lassa fever and Bolivian hemorrhagic fever.
The reservoir and source of infection arerodents Calomis laucha, Calomis musculinus. Viruses are also distinguished by gamazovyh mites. Suffer more from February to June, the peak incidence in May. Ill mostly villagers. Infection occurs through the air, inhaling dust from rodent infested with viruses. Infection can occur through food and contaminated with the urine of rodents. Outbreaks occurred each year, the number of cases ranged from 100 to 3,500 people.
Despite the fact that the virus causing bolzenfound, it remains poorly understood disease itself. Infection atriums is the mucous membranes of the nose and the mouth, digestive tract, possibly getting the virus through the skin microtrauma. The virus spreads throughout the body, affecting many organs and systems. In turn pervvuyu, vessels and nervous system.
The latent period lasts from 7 to 16 days. The disease begins gradually. Increased body temperature, sometimes with chills, there is a weakness, headache, muscle aches, nausea, vomiting, loss of appetite. Fever increases and reaches 39-40 ° C. As with many other fevers, may be nasal, pulmonary, gastrointestinal bleeding, provlyayuschiesya bloody vomit and stool black or the color of old blood. Possible changes in the nervous system - excitation, a state of intoxication, lethargy.
The help doctors
Determine what kind of fever is possible on the basis of the data about the place of residence to the disease. However, the final diagnosis is made only in the laboratory, after the discovery of the virus in the blood.
Special preparations for the treatment of fever is not, conduct supportive care and treatment to the temperature ponyazhenie, stop bleeding, pain relief.
Specific preventive maintenance is not developed. Rodent found in homes.
Bolivian hemorrhagic fever - acuteviral disease characterized by the natural foci, fever, hemorrhagic syndrome (bleeding, bleeding, rashes, bruises). It is very similar to the Argentine hemorrhagic fever.
The causative agent, a virus called Machupo, (named after the river in the outbreak of the disease) refers to arenaviruses. The properties similar to the Junin virus, but it differs from the composition of proteins.
The reservoir and source of infection arerodents Calomys callosus, who celebrated chronic infection and virus excretion in the urine. Infection of human may occur through contaminated water and rodent control products, as well as by inhalation of contaminated dust. There have been cases of human infection from a sick person. The disease occurs throughout the year. Distributed in some areas of Bolivia.
The latent period lasts 7 to 14 days. The disease begins gradually. Within a few days the temperature reaches 39-40 ° C and kept at this level for a few days. Hemorrhagic manifestations in the initial period are more common than in the Argentine hemorrhagic fever. There may be nasal, stomach, uterine bleeding. The disease lasts 2-3 weeks. In the period of recovery of hair loss occurs.
Mortality ranges from 5 to 30%. Treatment with the same Argentine fever.