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Infectious mononucleosis mainly affects younger adults. [16] When older adults do catch the disease, they less often have characteristic signs and symptoms such as the sore throat and lymphadenopathy. [16] [26] Instead, they may primarily experience prolonged fever, fatigue, malaise and body pains. [16]
The symptoms may last around 10 days to three weeks. [5] It may be is associated with blurred vision, photophobia and swelling of the conjunctiva. [5] [14] A sore throat and nasal congestion may or may not be present. [5] This tends to occur in epidemics, affecting predominantly adults. [5]
There are several forms of Epstein–Barr virus (EBV) infection. These include asymptomatic infections, the primary infection, infectious mononucleosis, and the progression of asymptomatic or primary infections to: 1) any one of various Epstein–Barr virus-associated lymphoproliferative diseases such as chronic active EBV infection, EBV+ hemophagocytic lymphohistiocytosis, Burkitt's lymphoma ...
“In adults over the age of 65, symptoms almost always include a cough, whereas with the flu, coughing is usually just present in about two-thirds of patients,” he says.
Many children who become infected with EBV display no symptoms or the symptoms are indistinguishable from the other mild, brief illnesses of childhood. [21] When infection occurs during adolescence or young adulthood, it causes infectious mononucleosis 35 to 50% of the time. [22] EBV infects B cells of the immune system and epithelial cells.
Bird flu is a scary illness with a high mortality rate. But so far, infections in the U.S. have been relatively mild—until now. A patient in Louisiana has been hospitalized with a severe case of ...
How long do symptoms last? It really depends on the person. Typically, people with mild cases will experience symptoms for 5-10 days, however, many may start to feel better sooner than that ...
It will generally not be positive during the 4–6 week incubation period before the onset of symptoms. The highest amount of heterophile antibodies occurs 2 to 5 weeks after the onset of symptoms. [9] If positive, it will remain so for at least six weeks. [10] An elevated heterophile antibody level may persist up to 1 year. [9]