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Cytomegalovirus (CMV) (from cyto-'cell' via Greek κύτος kútos - 'container' + μέγας mégas 'big, megalo-' + -virus via Latin vīrus 'poison') is a genus of viruses in the order Herpesvirales, in the family Herpesviridae, [3] in the subfamily Betaherpesvirinae. Humans and other primates serve as natural hosts.
However, infants born preterm and infected with CMV after birth (especially via breastmilk [8]) may experience cognitive and motor impairments later in life. [9] [10] Symptoms associated with CMV, such as hearing loss, can result in further developmental delay. A delay in general speech and language development is more common in children with ...
Cytomegalovirus retinitis, also known as CMV retinitis, is an inflammation of the retina of the eye that can lead to blindness. [1] Caused by human cytomegalovirus , it occurs predominantly in people whose immune system has been compromised, including 15-40% of those with AIDS.
The CMV pp65 assay is widely used for monitoring CMV infection and its response to antiviral treatment in people who are under immunosuppressive therapy and have had renal transplantation surgery, as the antigenemia results are obtained about 5 days before the onset of symptomatic CMV disease.
In the past nucleic acid tests have mainly been used as a secondary test to confirm positive serological results. [3] However, as they become cheaper and more automated, they are increasingly becoming the primary tool for diagnostics and can also be use for monitoring of treatment of viral infected individuals t.
CMV colitis may be clinically manifested with diarrhea (usually non-bloody), abdominal pain, weight loss and anorexia. The diagnosis of CMV colitis is based on serology, CMV antigen testing and colonoscopy with biopsy. Clinical suspicion should be aroused in the setting of immunocompromised patient but it is much rarer in immunocompetent patient.
A 2010 review study by Puren et al. [2] categorizes viral load testing into three types: (1) nucleic acid amplification based tests (NATs or NAATs) commercially available in the United States with Food and Drug Administration (FDA) approval, or on the market in the European Economic Area (EEA) with the CE marking; (2) "Home–brew" or in-house NATs; (3) non-nucleic acid-based test.
During pregnancy, acute hepatitis B infection can result in increased risk of preterm delivery, low birth weight and increased risk of gestational diabetes mellitus. Chronic hepatitis B infection is the largest concern globally. Chronic hepatitis B infection can lead to acute liver failure and increased alanine aminotransferase flares.