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PubMed1977

Neonatal conjunctivitis caused by Neisseria gonorrhoeae and Chlamydia trachomatis.

In a selected group of 103 babies referred with neonatal conjunctivitis Neisseria gonorrhoeae was isolated from 11 and Chlamydia trachomatis from 33. Concurrent infection was present in three. On toddler sibling developed chlamydial conjunctivitis. After treatment C. trachomatis was re-isolated from six babies during the follow-up period. The discharge started one to three days after delivery in only three babies with gonococcal conjunctivitis and at five to eight days in eight babies. One baby was delivered by caesarean section. N. gonorrhoeae was isolated from four asymptomatic fathers, all of whom had urethritis. The mean onset of discharge in the 33 babies from whom Chlamydia was isolated was 7-1 days. One baby was delivered by caesarean section. Chlamydial conjunctivitis was associated with a high incidence of prematurity and of postpartum infection in the mother. Ten fathers of Chlamydia-positive babies were examined. C. tachomatis was isolated from four, all of whom were asymptomatic but had low-grade urethritis. These findings confirm the pathogenic role of C. trachomatis in the cervix and indicate the importance to the family of an adequate microbiological investigation of neonatal conjunctivitis.

Adult↗
PubMed1980

Epidemiology of infection by serotypes D to K of chlamydia trachomatis.

Non-specific urethritis (NSU) is a sexually transmitted disease; 50% of cases are due to Chlamydia trachomatis, so that this is the commonest sexually transmitted infection in the developed world. Chlamydial infection is now readily diagnosable and the evidence increasingly suggests that it is underdiagnosed. Chlamydial conjunctivitis (in the newborn baby or the adult) in the developed world is a complication of sexually transmitted genital infection by C trachomatis and it indicates a large reservoir of such infections. Because of the association of sexually transmitted diseases, systemic treatment for such chlamydial conjunctivitis should not be given until full genital and serological investigators have been carried out. Chlamydial infection causes serious complications (that were formerly often thought to be gonococcal), such as epididymitis in young men and salpingitis on young women. It may cause local complications in the eye of the newborn baby and even pneumonia in babies and fatal endocarditis in adults. The diagnosis of NSU should lead to the correct treatment of the male patient and of his sexual partners. It is the promiscuous woman, who does not have a regular sexual partner to report back to her that he has NSU, who is at particular risk of undiagnosed chlamydial infection. Routine genital investigations for chlamydia are particularly indicated in her case. Following the parallel of gonorrhoea, it seems that the use of contact tracers may be an effective method for controlling chlamydial infection.

Adult↗
PubMed1995

Interpretation of Chlamydia trachomatis antibody response in chlamydial oculogenital infection.

OBJECTIVE: To study: (a) the chlamydial antibody response (to the D-K serovars) using the micro-immunofluorescence (micro-IF) test in the following groups: (I) chlamydial genital infection only, (II) chlamydial ocular infection only, (III) combined chlamydial ocular and genital infection (oculo-genital infection), (IV) chlamydial ocular infection with chlamydia-negative non-gonococcal urethritis, (V) adenovirus conjunctivitis (control group 1), (VI) male partners of group I-IV with no chlamydial oculogenital infection or non-gonococcal urethritis (control group 2) (b) the cross reactivity of antibodies in patients' sera between the three chlamydial species and within the serovars of C trachomatis in those with culture-positive chlamydial oculo-genital infection. SETTING: oculogenital (diagnostic) clinic at Moorfields Eye Hospital, London, UK. SUBJECTS: 209 consecutive patients attending the clinic with Chlamydia trachomatis oculogenital infection and 86 patients with adenovirus conjunctivitis (control group 1) and 55 male partners with no evidence of chlamydial oculogenital infection or non-gonococcal urethritis (control group 2). RESULTS: Of all the patients with proven chlamydial oculogenital infection, 10.5% (22/209) and 94% (197/209) had IgM and IgG antibodies respectively. The geometric mean IgG antibody titres (GMT) were 1:98, 1:123, 1:245 and 1:101 in groups I to IV respectively. The IgG GMT values seen in control groups 1 and 2 were 1:45 and 1:36 respectively. Only 2/86(2%) patients in group V (control group 1) had IgG chlamydial antibodies of 1:32 and 1:64, whilst only 1/55(1.8%) and 4/55(7.3%) of patients in group VI(control group 2) had chlamydial IgG antibody titres of > or = 1:256 and > or = 1:128 respectively. A four-fold rise or fall in IgG antibody titre occurred in 56%(107/192) of patient groups I-IV over 2-6 weeks. Low titre cross-reactive antibody responses against different chlamydial species and serovars were commonly seen; 71%(148/209) of all patients showed cross-reactivity with Chlamydia pneumoniae or psittaci species or both, whilst 92% (193/209) of patients showed some level of cross reactivity to other pooled serovars of C trachomatis (A-C and L 1-3). CONCLUSIONS: Serological diagnosis of chlamydial infection as evidenced by a positive IgM antibody response, high IgG titre (> or = 1:256) or > or = 4-fold rise or fall in IgG antibody titre was seen in 78%(163/209) of patients with culture-positive chlamydial oculogenital infection. Chlamydial IgG antibody titres of > or = 1:256 had a sensitivity of 42.6%, specificity of 98.2%, positive predictive value of 98.8% and a negative predictive value of 31% for chlamydial infection at any site, when considering groups I-IV and control group 2. In this study of 216 patients with conjunctivitis, a positive IgG antibody response (titre > or = 1:16) had a sensitivity of 98.5%, specificity of 97.7%, positive predictive value of 98.5% and a negative predictive value of 97.7%, for chlamydial conjunctivitis. Patients with dual chlamydial infection of conjunctiva and genital tract had a higher IgG GMT titre than those with ocular or genital infection alone: infection at a second site may produce an anamnestic response. Although the micro-IF test is a useful adjunct for the diagnosis of chlamydial infection, cross-reactivity between different chlamydial species and serovars is common. Chlamydial seroepidemiological studies should be interpreted with caution, as studies may attribute a serological response to a particular species or serovar in a setting where two or more are prevalent.

Antibodies, Bacterial↗
PubMed1996

Epidemiology of genital chlamydial infections in patients with chlamydial conjunctivitis; a retrospective study.

OBJECTIVE: To determine how often chlamydial conjunctivitis is accompanied by a genital chlamydial infection and if there is a correlation between the dominant hand and the eye first infected. METHODS: We retrospectively studied the records of 65 patients with chlamydial conjunctivitis who were referred to the Outpatient Department of Sexually Transmitted Diseases (STD) of the University Hospital Rotterdam by ophthalmologists of the Eye Hospital Rotterdam. The patients have recently been asked by letter if they were left- or right-handed. RESULTS: Twenty of the 37 men (54%) had a positive chlamydial urethral culture. Seventy per cent of these men had no genital symptoms. Eight of the 37 men (22%) had a non-specific urethritis (NSU). Twenty of the 27 women examined (74%) had a positive chlamydial cervical culture. Sixty per cent of these women had no genital symptoms. Eight women with a genital chlamydial infection also had another genital infection. Five women without a genital chlamydial infection had another genital infection. Two women had no genital infection at all. A correlation between the eye infected and left- or right-handedness of the patient could not be found. CONCLUSIONS: A considerable percentage of the patients with a chlamydial conjunctivitis had a concomitant genital chlamydial infection. The majority of them had no genital symptoms. Since patients with chlamydial conjunctivitis and/or their partners possibly have a concomitant genital chlamydial infection, we recommend referral of both patients and sexual partners to an STD clinic for routine examination and systemic treatment when indicated.

Adolescent↗
PubMed1980

Chlamydiae.

Explore the source record for details and available documents.

Animal Diseases↗
PubMed1991

Evaluation of diagnostic procedures in chlamydial eye infection.

Sixty-six patients suffering from suspected chlamydial conjunctivitis or keratoconjunctivitis underwent direct examination and culture procedures on specimens from conjunctival swabs and corneal scraping for detection of Chlamydia trachomatis. Patient blood samples were also screened for the presence of antichlamydia IgG and IgA antibodies. Eye positivity was found in 12 and 15% of patients by using culture isolation and direct examination, respectively. In 3 out of the 8 patients with culture-proven chlamydial eye infection, all of them female, C. trachomatis was also isolated from the genital tract.

Adolescent↗
PubMed1991

Chlamydia trachomatis in the etiology of acute otitis media.

In an effort to show that Chlamydia trachomatis (CT) may be involved in the causation of acute otitis media (AOM), we performed three experiments. In the first, we inoculated the tympanic bullae of 6 chinchillas with CT. Five of the 6 inoculated animals developed CT AOM. In the second experiment, we sprayed the nasopharynx of 10 chinchillas with CT. Of these, 8 developed both pharyngitis and AOM, and in 6, live CT was cultured from the middle ear and pharynx. In the third experiment, 5 chinchillas had their conjunctiva inoculated with CT. Three developed CT conjunctivitis. Of these, 2 developed CT pharyngitis and 1 developed CT AOM. We concluded that CT will cause AOM in the chinchilla by direct inoculation into the middle ear as well as indirectly by infection of the nasopharynx and conjunctiva.

Acute Disease↗
PubMed1979

Conjunctivitis in children. A refresher survey of diagnosis and contemporary treatment.

The management of acute conjunctivitis need not be confusing. In the newborn period the common etiologic agents are chemical, TRIC, and bacterial. The latter two causes are effectively treated with sulfacetamide ophthalmic preparations. Dacryostenosis should be suspected in any child with recurrent conjunctivitis in the first six months of life. With older children the major causes can be classified as viral, allergic, foreign bodies, and bacterial. Bacterial conjunctivitis almost always responds to sulfacetamide ophthalmic preparations.

Anti-Bacterial Agents↗
PubMed1980

Chlamydial pneumonia of infancy: further clinical observations.

Two patients with chlamydial pneumonia of infancy are described. One recovered spontaneously without any specific antichlamydial treatment. The other, prior to a belated antimicrobial therapy, developed a persistent and protracted respiratory illness characterized by wheezing. Our observations suggest that: (1) untreated chlamydial pneumonia of infancy may spontaneously resolve, or may become a persistent and protracted disease, and (2) wheezing may be a very prominent manifestation of the disease and should be differentiated from wheezing due to bronchiolitis and bronchial asthma.

Asthma↗
PubMed2006

Can chlamydial conjunctivitis result from direct ejaculation into the eye?

The majority of cases of chlamydial conjunctivitis are thought to result from autoinoculation by the patient of infected genital secretions from themselves or their sexual partners. We noted that some patients had developed symptoms following direct ejaculation into the affected eye. We describe four cases of chlamydial conjunctivitis following ejaculation of semen directly into the eye, which have not been previously described. In only one case was chlamydia detected in the genital tract. In three cases, there was no evidence of genital chlamydial infection; the sources of the eye infection being either from infected genital material of their sexual partners transferred by hands to the eyes, or more likely from direct ejaculate inoculation. It is likely that this mode of transmission is underestimated as a history of ejaculation into the conjunctiva is not normally asked for.

Adult↗
PubMed2005

Therapeutic approaches to Chlamydia infections.

Chlamydia trachomatis ocular and urogenital infections represent major public health problems, whereas Chlamydophila pneumoniae is a common aetiological agent of community-acquired pneumonia. The obligate intracellular lifestyle of these established pathogens poses challenges to both their diagnosis and treatment. Tetracyclines, macrolides and quinolones remain the antimicrobials of choice for the treatment of infections due to Chlamydiaceae.

Anti-Bacterial Agents↗