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Prospective serological and clinical studies on infants born in Kuwait with an elevated IgM in cord blood
Insights
Congenital infections like cytomegalovirus are significant in Arab infants. This study found associations between elevated IgM and these infections, highlighting the need for further research in developing countries.
Area of Science:
- Medical Microbiology
- Virology
- Immunology
Background:
- Congenital viral and toxoplasmal infections are understudied in developing nations.
- Preliminary data on these infections among Arab mothers and infants in Kuwait is lacking.
Purpose of the Study:
- To provide preliminary data on congenital viral and toxoplasmal infections in Kuwait.
- To investigate the association between elevated IgM and congenital infections in newborns.
- To identify clinical abnormalities linked to serological evidence of infection.
Main Methods:
- Prospective study of infants born with elevated IgM in cord blood.
- Serological testing for specific IgM to confirm congenital infections.
- Clinical evaluation during the first year of life.
Main Results:
- A significant association was found between elevated cord blood IgM and cytomegalovirus infection.
- Specific IgM in cord sera helped confirm congenital infections and rule out postnatal ones.
- 18.5% of cases showed a link between serological infection evidence and clinical abnormalities.
- Cytomegalovirus and rubella virus were the primary identified congenital infections; no evidence for other viruses or toxoplasma.
Conclusions:
- Cytomegalovirus is a notable cause of congenital infection in the studied population.
- Elevated IgM in cord blood can be an indicator for further investigation of congenital infections.
- Further research is needed to understand the prevalence and impact of congenital infections in developing countries.
Abstract:
Little is known about congenital viral and toxoplasmal infections in the developing countries. This study attempts to provide preliminary data on such infections among Arab mothers and infants in Kuwait. Babies born with an elevated IgM in cord blood were selected at birth and then studied prospectively during the first year of life for serological and clinical evidence of viral and toxoplasmal infections. There appeared to be a significant association between the elevation of total cord blood IgM and the selection of cases with cytomegalovirus infection. Demonstration of specific IgM in cord sera was attempted, whenever possible, to provide further evidence of congenital infection and to exclude early postnatal infections. In 18.5% of cases there was an association between serological evidence of infection and certain clinical abnormalities. Apart from cytomegalovirus and rubella virus, no evidence was found for congenital infection by other viruses or toxoplasma in this study.