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Published on: July 6, 2013
Prevalence of cytomegalovirus infection in hospitalized infants
Ivan S Ivanov1, Nikolay I Popov, Rumyana I Moshe
1Clinic of Children's and Genetic Diseases, Medical University, Plovdiv, Bulgaria. ivanovist@gmail.com
Insights
Cytomegalovirus (CMV) infection is common in hospitalized infants, with prevalence increasing with age. Over half of infected infants under three months old show clear symptoms, highlighting the need for awareness and management of this viral infection.
Area of Science:
- Pediatric Infectious Diseases
- Virology
- Neonatal Health
Background:
- Cytomegalovirus (CMV) infection data in hospitalized infants is limited and inconsistent.
- Understanding CMV prevalence and clinical presentation in this population is crucial.
Purpose of the Study:
- To determine the prevalence, clinical manifestations, risk factors, and predictive capacity of symptoms for CMV infection in hospitalized infants.
- To investigate CMV infection rates in infants during their first year of life.
Main Methods:
- Serological screening for CMV infection in 163 hospitalized infants over 10 months.
- Follow-up of CMV IgG concentration in infants up to 6 months old and comparison with maternal levels.
Main Results:
- Overall CMV prevalence was 33.1%, with higher rates in older infants (up to 71.9% in 7-12 month olds).
- Clinically apparent CMV infection occurred in over half of infants up to 3 months old.
- Hepatitis, cerebral vasculopathy, and pneumonia were identified as predictors of CMV infection.
Conclusions:
- Hospitalized infants under one year old exhibit a high rate of CMV infections.
- CMV infection contributes significantly to hospitalizations in newborns and young infants.
- Early-onset CMV infection is often clinically apparent in infants.
Unlabelled:
Data on cytomegalovirus infection (CMV) prevalence and course in hospitalized infants are rather scarce, obsolete and considerably inconsistent.
Aim:
to determine the prevalence, rate of clinical manifestations, risk factors and predictive capacity of clinical manifestations of CMV infection in hospitalized infants during their first year of life.
Patients And Methods:
All 163 infants hospitalized in the Pediatric Ward for Nonrespiratory Pathology in a tertiary hospital were serologically screened for cytomegalovirus infection for 10 months. In infants up to 6 months old that were CMV IgG (+) and CMV IgM (-) we followed up the CMV IgG concentration or compared it with that of their mothers.
Results:
The CMV prevalence for the entire study sample was 33.1 +/- 3.7% (54 seropositive out of 163 examined infants); in newborns it was 19.4 +/- 6.7% (7 of 36), in infants aged 1-3 months--23.8 +/- 5.4% (15 of 63), in 4-6-month olds--28.1 +/- 8.1% (9 of 32), and in 7-12-month old--71.9 +/- 8.1% (23 of 32). The rates of clinically apparent infections in the respective groups was 33.3 +/- 6.5%, 57.01 +/- 20.2%, 53.3 +/- 13.3%, 33.3 +/- 16.6%, and 13.0 +/- 7.17%. The overall rate of clinically apparent CMV infection in all 163 children was between 11.0 +/- 2.5% and 17.2 +/- 2.9%. The probability of CMV infection increased with age and duration of breastfeeding. Hepatitis, cerebral vasculopathy and pneumonia (alone or combined) turned out to be predictors of CMV infection, but none of these symptoms had a frequency greater than 22%.
Conclusions:
We found a high rate of cytomegalovirus infections in hospitalized infants less than one year of age. This infection is the reason why at least 10% of the newborns and 12% of the children aged 1 to 3 months were hospitalised. The course was clinically apparent in over half of the infected children of up to 3 months of age.
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