Related Experiment Video
Updated: Jun 5, 2026

Using Bioluminescent Imaging to Investigate Synergism Between Streptococcus pneumoniae and Influenza A Virus in Infant Mice
Published on: April 14, 2011
What clinical signs best identify severe illness in young infants aged 0-59 days in developing countries? A
1KEMRI/Wellcome Trust Research Programme, P.O. Box 43640, 00100 GPO, Nairobi, Kenya. nopiyo@nairobi.kemri-wellcome.org
Insights
Identifying severe infant illness in resource-poor settings is crucial. Key clinical signs like feeding difficulty, convulsions, abnormal temperature, and breathing issues help predict the need for hospital care in young infants.
Area of Science:
- Pediatrics
- Global Health
- Neonatology
Background:
- Young infant mortality remains high, particularly in resource-poor settings, despite overall improvements in child survival.
- Clinical decisions for managing severely ill infants in these areas often rely on presenting signs due to limited laboratory facilities.
- Young infants (0-59 days) represent an increasing proportion of child deaths globally.
Purpose of the Study:
- To review evidence from observational studies on clinical signs indicating severe illness in young infants.
- To identify a minimum set of the best predictors for hospital-level care in sick infants aged 0-59 days.
- To guide clinical decision-making in resource-limited settings for neonates.
Main Methods:
- Systematic review of observational studies focusing on clinical signs in sick young infants (0-59 days).
- Analysis of evidence quality to determine the most valuable predictors of severe illness.
- Identification of specific clinical signs associated with the need for hospital admission.
Main Results:
- Several clinical signs, alone or in combination, are valuable predictors of severe illness in infants aged 0-59 days.
- Key indicators include feeding difficulty, convulsions, abnormal temperature (≥37.5°C or <35.5°C), altered activity level, and respiratory distress (fast breathing ≥60/min, severe chest indrawing, grunting).
- Cyanosis was also identified as a significant sign of severe illness.
Conclusions:
- A defined set of clinical signs can effectively identify young infants requiring hospital-level care in resource-poor settings.
- These signs provide a practical approach for healthcare providers with limited diagnostic tools.
- Early recognition of these indicators can improve timely intervention and outcomes for sick neonates.
Abstract:
Despite recent overall improvement in the survival of under-five children worldwide, mortality among young infants remains high, and accounts for an increasing proportion of child deaths in resource-poor settings. In such settings, clinical decisions for appropriate management of severely ill infants have to be made on the basis of presenting clinical signs, and with limited or no laboratory facilities. This review summarises the evidence from observational studies of clinical signs of severe illnesses in young infants aged 0-59 days, with a particular focus on defining a minimum set of best predictors of the need for hospital-level care. Available moderate to high quality evidence suggests that, among sick infants aged 0-59 days brought to a health facility, the following clinical signs-alone or in combination-are likely to be the most valuable in identifying infants at risk of severe illness warranting hospital-level care: history of feeding difficulty, history of convulsions, temperature (axillary) ≥37.5°C or <35.5°C, change in level of activity, fast breathing/respiratory rate ≥60 breaths per minute, severe chest indrawing, grunting and cyanosis.
Related Concept Videos
Bacterial Meningitis I: Introduction
Respiratory Syncytial Virus Disease

