Yellow fever Is a viral disease that can cause diseases and a huge epidemic in Africa and the Americas. And can recognize him from historical texts dating back to 400 years . The infection causes different types of diseases that have symptoms including moderate ones that cause severe diseases may lead to death . Yellow is the name to explain the jaundice that affects some patients. Although an effective vaccine that has been available for nearly 60 years , the number of people infected has increased during the past two decades and has become a disease yellow fever is now a serious disease . The virus causes the illness of a group called the flavin viruses, In Africa, there are two different types of Tercibama gene called them Altoputebs , and are linked to the western and eastern Africa . South America also has two types of the disease , but since 1974, there is one kind were identified him as the cause of death. The virus remains in the body through a finger incubation period for three to six days . And then show two stages of the disease . While some types of infections have no symptoms , but the first phase is the acute phase and is usually characterized by high temperature and the presence of muscle pain with sharp pain in the back , headache, tremor , loss of appetite , nausea or vomiting , and usually the temperature rise associated with a decrease in pulse. After three to four days most patients get better and the symptoms disappear . But 15 % of patients entering the second stage , known as phase toxicity within 24 hours . Back where high temperature is affected by different organs in the body and soon the patient is suffering from jaundice or yellowish complain of pain in the stomach with vomiting . It can happen bleeding from the mouth , nose, and sometimes the eye or stomach. Once that happens it shows blood in the vomit and deteriorating kidneys work and can be stalled this between high levels of protein in the urine or a complete failure in the work of the kidneys without the secretion of urine , and half of those entering the stage toxicity die within 10 days or 14 days at most , and the rest may heal without causing substantial damage to organs . Of yellow fever is difficult to diagnose , especially during the first stage , where it can easily be confused with malaria or typhoid or disease rickets and viral hemorrhagic fever or dengue fever , known as Abu knees , which is caused by a virus and viral hepatitis and poisoning . Here, the laboratory analysis to be required to confirm the situation and especially the analysis of blood antibodies for the diagnosis of yellow fever , which produces in response to infection . There are other methods used to identify the same virus in samples of blood or liver tissue taken after death. These tests require specialized laboratories and laboratory analysis team uses a highly experienced equipment and special materials . The virus is present consistently in certain tropical regions now in Africa and the Americas. It can be transformed to the presence of viral epidemic entrepreneur. Until the beginning of the twentieth century was the yellow fever has also spread to Europe , the Caribbean , North America and Central America . Currently there are 33 countries with a population to 508 million people are at risk of exposure to the disease they are in Africa , while in the Americas , the disease is endemic in 9 countries in South America and in a number of Caribbean islands , Bolivia, Brazil , Colombia, Ecuador and Peru , which is one of the nations top vulnerable . There are about 200 thousand cases of yellow fever with an estimated 30 thousand deaths per year. In any case, the small percentage of these cases go unreported . In spite of that yellow fever has not been reported from Asia , the region is at risk because of the presence of certain types of animals and mosquitoes . Humans and monkeys are the core of the animals that are exposed to infection . Carries the virus from animal to another by mosquitoes that can also pass the virus through infected eggs to animal or human . The eggs , which produces drought resistant , and the rest of the egg static during dry conditions and begin to hatch when the rainy seasons , so the mosquito is considered a reservoir for the virus and is working on his move from year to year . Treatment: There is no specific treatment for the disease , although it was the only available treatment is antibiotics , and also health care, intensive , and can lead to improved results of infection for patients who arrive in severe cases but is rarely available in poorer developing countries . Prevention: The vaccine is the most important procedure for preventing yellow fever , and control the spread of mosquito breeding in some areas , especially the type known wild mosquitoes could be used to prevent transmission of the virus until a vaccine is paying its outcome . And yellow fever vaccine is safe.
0 التعليقات:
Post a Comment