occult infection

An infection first recognised by secondary manifestations—e.g., increased neutrophils in the circulation or fever of unknown origin—often caused by a bacterial infection in an obscure site—e.g., a subphrenic or other intra-abdominal region

occult infection

An infection first recognized by 2º manifestations–eg, ↑ PMNs in the circulation or FUO, often caused by a bacterial infection in an obscure site–eg, a subphrenic or other intraabdominal region. See Fever of unknown origin.
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Urine and blood cultures revealed no growth; brain MRI and echocardiogram were done to rule out possibilities of other occult infection and were normal.
The presence of occult infection among long-stay mentally ill patients is worrying considering not only the possibility of progression to cirrhosis and carcinoma but also because it may cause viral transmission, due to the living conditions of the individuals.
However, HCV RNA was not found in the PBMCs of cryptogenic liver disease patients so the concept of occult infection support by Halfon and his group (Halfon et al., 2008) was not supported by many studies.
The influence of occult infection with hepatitis B virus on liver histology and response to interferon treatment in chronic hepatitis C patients.
Occult infection alone may not have clinical consequences and may become injurious only when the virus is reactivated after immuno-suppression14.
In the subgroup analyses, the pooled prevalence of HBV reactivation among patients with occult infection was 3.0% (95% CI: 0.6-72, [I.sup.2]: 77.1%) and the pooled prevalence of HBV reactivation among patients with overt HBV infection was 15.4% (95% CI: 1.2-41.2%, [I.sup.2]:79.9%).
This finding is analogous to a secondary occult infection in the woodchuck (27).
Previous studies have linked the usual HBV infection with liver cancer, but it was unclear if the same held true with occult infection.
The valve abnormality appears to be congenital in most "MS" patients - all such patients have "difficult veins" - but occult infection has not been excluded.
An occult infection may be the outcome of prepatent infection, unisexual adult infections, worm sterility following therapy and immune-mediated sterile infection.
Occult infection VI - + + 24.1 Resolved infection VII - - + 8.9 Immune (most probably vaccination) NA + - + 0.03 * Serology patterns which require further testing for secondary markers.
"The presence of respiratory viral infections in these four IPF patients suggests that a small minority of acute exacerbations of IPF may be caused by occult infection with common respiratory viruses," said Dr.