A college student comes to the campus health care center complaining of headache, malaise, and a sore throat that has worsened o
ver the past 10 days. the nurse measures a temperature of 102.6° f (39.2° c.and finds an enlarged spleen and liver and exudative tonsillitis. laboratory tests reveal a leukocyte count of 20,000/mm3, antibodies to epstein-barr virus, and abnormal liver function tests. these findings suggest
This is a case of a patient presenting with headache, malaise, and sore throat. Physical examination revealed fever (39.2 degrees Celsius), enlarged spleen, enlarged liver, and exudative tonsillitis. Diagnostics revealed leukocytosis, (+) antibodies to EBV, and abnormal liver function tests. With these salient features, the diagnosis for this patient is infectious mononucleosis.
Infectious mononucleosis or glandular fever is a viral infection caused by Epstein-Barr virus. Also known as "the kissing disease" as this infection most often transmitted by kissing. Patients infected with infectious mononucleosis presents with severe sore throat, fever, hepatosplenomegaly, and lymphocytosis with atypical lymphocytes. EBV infection also poses a risk for developing nasopharyngeal carcinoma.
The Hershey–Chase experiment was based on a bacteriophage T2 (a virus), to that DNA is the genetic material. Bacteriophage T2 attacks bacterium and makes its copies. Based on the experiment, Hershey and Chase deduced that it is the DNA of virus enters bacteria to make virus copies. To trace viral DNA, Hershey and Chase label DNA with ³²P (radioisotope of phosphorus) because phosphorus is not present in most of the proteins.
