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Pfeiffer syndrome is a rare genetic disorder, characterized by the premature fusion of certain bones of the skull ( craniosynostosis ), which affects the shape of the head and face. The syndrome includes abnormalities of the hands and feet, such as wide and deviated thumbs and big toes. Pfeiffer syndrome is caused by mutations in the fibroblast ...
This photomicrograph depicts leukemia cells that contain Epstein–Barr virus using a FA staining technique. Epstein–Barr virus, EBV, is a member of the Herpesvirus family, and is one of the most common human viruses. When infection with EBV occurs during adolescence or young adulthood, it causes infectious mononucleosis 35% to 50% of the time.
Infectious mononucleosis ( IM, mono ), also known as glandular fever, is an infection usually caused by the Epstein–Barr virus (EBV). [2] [3] Most people are infected by the virus as children, when the disease produces few or no symptoms. [2] In young adults, the disease often results in fever, sore throat, enlarged lymph nodes in the neck ...
Epstein–Barr virus (EBV) is the first identified oncogenic virus, which establishes permanent infection in humans. EBV causes infectious mononucleosis and is also tightly linked to many malignant diseases. Various vaccine formulations underwent testing in different animals or in humans.
Patients with Crouzon syndrome sometimes exhibit malformations of the external ear and/or the middle ear, such as malalignment of the pinna (Peterson-Falzone et al., 2001). Literature has suggested that persons with Crouzon syndrome typically have conductive hearing loss caused by middle ear effusion (or fluid in the middle ear) and perforation ...
Viral disease. A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells. [1] Examples are the common cold, gastroenteritis and pneumonia. [2]
Haemophilus influenzae. Haemophilus influenzae (formerly called Pfeiffer's bacillus or Bacillus influenzae) is a Gram-negative, non-motile, coccobacillary, facultatively anaerobic, capnophilic pathogenic bacterium of the family Pasteurellaceae. The bacteria are mesophilic and grow best at temperatures between 35 and 37 °C.
Progressive multifocal leukoencephalopathy ( PML) is a rare and often fatal viral disease characterized by progressive damage ( -pathy) or inflammation of the white matter ( leuko-) of the brain ( -encephalo-) at multiple locations ( multifocal ). It is caused by the JC virus, which is normally present and kept under control by the immune system.