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Query: UMLS:C0001486 (Adenovirus)
 3,125 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The presence of concomitant viral or bacterial infection was evaluated in 20 patients hospitalized for adenovirus infection of the middle or lower airways by using new serological methods for detection of both antigens and antibodies. Adenovirus infection was identified by measurement of antibodies with complement fixation test or by direct detection of viral antigen in nasopharyngeal aspirates. Mixed infection was present in 11 (55%) of the 20 patients. Viral coinfection was demonstrated in five (25%) and bacterial in nine (45%) patients. Bacterial coinfection was common, 67%, in children with an infection focus, pneumonia or acute otitis media, but rare, 13%, in those without it. Seroconversion to nontypable Haemophilus influenzae was indicated in six children; four of them were infants, four had pneumonia and three acute otitis media. Pneumococcal infection was indicated in two patients with pneumonia, both aged over two years. Chlamydia trachomatis was involved in one case. The results indicate that bacterial coinfection is common in respiratory adenovirus infection affecting lower airways, especially if pneumonia is present.
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PMID:Mixed infection is common in children with respiratory adenovirus infection. 164 44

The clinical characteristics of acute otitis media in relation to coexisting respiratory virus infection were studied in a 1-year prospective study of 363 children with acute otitis media. Respiratory viruses were detected using virus isolation and virus antigen detection in nasopharyngeal specimens of 42% of the patients at the time of diagnosis. Rhinovirus (24%) and respiratory syncytial virus (13%) were the two most common viruses detected. Adenovirus, parainfluenza viruses, and coronavirus OC43 were found less frequently. The mean duration of preceding symptoms was 5.9 days before the diagnosis of acute otitis media. Ninety-four percent of the children had symptoms of upper respiratory tract infection. Fever was reported in 55% and earache in 47% of cases. Patients with respiratory syncytial virus infection had fever, cough, and vomiting significantly more often than patients with rhinovirus infection or virus-negative patients. No significant differences were found in the appearance of the tympanic membrane and outcome of illness between virus-negative and virus-positive patients with acute otitis. Most patients respond well to antimicrobial therapy despite the coexisting viral infection. If the symptoms of infection persist, they can be due to the underlying viral infection, and viral diagnostics preferably with rapid methods may be clinically useful in these patients.
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PMID:Clinical role of respiratory virus infection in acute otitis media. 217 35

Antigens of respiratory viruses were tested by immunoassay of the middle ear fluids and nasopharyngeal secretions of 137 children with acute otitis media. The following were found: (1) an epidemic of infection with respiratory syncytial virus (RSV) caused a significant increase in the occurrence of acute otitis media. (2) Fifteen percent of the children had RSV antigens in middle ear fluid, and in 7% RSV was the sole pathogen found. Adenovirus antigens were found in the middle ear fluid of 3% of the children. (3) Bacteriologic findings in otitis media related and unrelated to viral (RSV) infection were similar. These findings indicate that some episodes of otitis media are associated with viral infection and that the disease may be solely due to viral infection. Thus, at least during an epidemic of respiratory virus infections, treatment failures--e.g., fever and earache unresponsive to antimicrobial therapy--may be due to a viral etiology of acute otitis media.
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PMID:Identification of respiratory virus antigens in middle ear fluids of children with acute otitis media. 298 61

The brain, eye, and inner ear are each protected from blood-borne infectious agents by a barrier that has some anatomic and functional differences. In patients with AIDS, opportunistic infections of the central nervous system and eye are frequent. Little is known about the incidence of middle and inner ear infections in patients with AIDS, but deafness and severe vertigo are uncommon. We studied 14 homosexual men with AIDS, aged 28 to 55 years, for 1 to 2 years until death. No patient had deafness, but one had vertigo. Adenovirus type 6 and cytomegalovirus were isolated from the middle ear cavity in four patients. Temporal bone histology demonstrated acute otitis media in four, chronic otitis media in two, and serous otitis media in three. Adenovirus type 6 and cytomegalovirus, either alone or with herpes simplex virus type 1, were isolated from inner fluids of three patients. Histologic inner ear findings were abnormal in only one patient. Viruses were isolated or histologically identified in the brains of four patients and in the eyes of five patients. In our patients viral infections were nearly as common in the inner ears as in the brain and eye, suggesting that protection from the blood-labyrinth barrier was similar to that from the other barriers. Because the inner ear viral infections were asymptomatic and there was an absence of pathologic damage and inflammation, we suggest that some viral inner ear infections in patients with AIDS are nonpathogenic and elicit no inflammation or that the viral infections occur terminally and elicit no inflammation because of immunosuppression from the AIDS.
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PMID:Clinical viral infections and temporal bone histologic studies of patients with AIDS. 750 79

This study clinically and molecularly characterizes an adenovirus epidemic that broke out in Taiwan in April 2004. Clinical data on 325 children diagnosed with acute illness were collected between April 2004 and April 2005, and a diagnosis of adenovirus was confirmed by viral isolation. Polymerase chain reaction and restriction fragment length polymorphism were used to identify the adenovirus genotypes in 267 patients. There was a seasonal variation, with a peak incidence between November 2004 and January 2005 (p < 0.001). The median age was 52 months, range 1-210 months. Most cases (90.8%) were younger than 7 years old. Male-to-female ratio was 1.56:1. The most common clinical diagnosis was exudative tonsillitis (50.8%), followed by bronchitis/bronchiolitis (29.9%), conjunctivitis or pharyngoconjunctival fever (22.5%), and acute otitis media (16.3%). Adenovirus type 3 was found in 215 patients (80.5%). The other 52 patients had other genotypes: type 2 (10.1%), type 1 (6.0%), type 5 (1.9%), type 7 (0.7%), type 4 (0.4%), and type 6 (0.4%). Patients with type 3 were significantly older [age >52 months, adjusted odds ratio (OR) 8.55, 95% confidence interval (CI) 1.84-40, p = 0.006), their family members had a higher incidence of illness (adjusted OR 8.77, 95% CI 1.55-50, p = 0.01), they coughed (adjusted OR 6.37, 95% CI 1.54-26.3, p = 0.01), and they had a higher C-reactive protein (CRP) level (>2.87 mg/dL, adjusted OR 3.64, 95% CI 1.06-12.3, p = 0.04) than the 52 cases with other genotypes. In conclusion, this adenovirus outbreak, from late autumn to winter, was predominately caused by adenovirus type 3. Patients with this genotype were significantly older, had a higher incidence of cough and family transmission, and had higher CRP levels than those with other genotypes.
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PMID:Molecular and clinical characteristics of adenoviral infections in Taiwanese children in 2004-2005. 1787 5