Participants who meet the inclusion and exclusion criteria will be enrolled and then having a daily follow up for maximum of 13 days' hospitalization. Next follow up will be taken time at day 14th after hospitalization date, either on ward or policlinic. The participations will be ended by day 30th after hospitalization date when the called follow up is done by investigator.
This study will collect demographic data, medical history, clinical data, treatment, and risk factors of pneumonia. The study also record the supporting examination results include but not limited to Complete Blood Count (CBC) results, blood gas analyses result, CRP, PCT, culture result, rapid test for influenza, Respiratory Syncytial Virus (RSV), legionella, and chest X-ray. In order to produce a robust data, this study will conduct the serological and molecular tests at the reference laboratory. Whole blood, serum, urine, Nasal Pharyngeal Swab (NPS), sputum/induced sputum, and other respiratory specimens (if available) will be collected for storage and testing at enrollment. Plasma from 48-72 hours after hospitalization and left-over respiratory specimens on day 2 and 3 of hospitalization will also be collected to be stored. For additional, at day 14th after hospitalization serum will be processed from 4 mL of blood for archiving and testing at the reference laboratory. This study will be conducted at following INA-RESPOND sites: * RSU Kabupaten Tangerang, Tangerang * RSUP Dr. Kariadi, Semarang * RSUP Dr. Sardjito, Yogyakarta RSU Kabupaten Tangerang located in Banten province is type B or district referral hospital. While RSUP Dr Kariadi in Semarang and RSUP Dr Sardjito in Yogyakarta are type A hospital which is a level of province referral. Maximum duration for participants' accrual will be 2 years since the first participant enrolled. However, the study laboratory testing may take up to 6 months to be completed.
Study Type
OBSERVATIONAL
Enrollment
188
University of Diponegoro/ Dr. Kariadi Hospital
Semarang, Central Java, Indonesia
University of Gadjah Mada/ Dr. Sardjito Hospital
Yogyakarta, DIY Yogyakarta, Indonesia
RSU Kabupaten Tangerang
Tangerang, West Java, Indonesia
An-Nisa Hospital
Tangerang, West Java, Indonesia
White Blood Cells and Absolute Neutrophil Count Cut-off Levels for Distinguishing of Viral and Bacterial/Mixed Pathogens
The area under the receiver operating curve (AUROC) for WBC and ANC count at enrolment was used to characterize their utility for discriminating bacterial/mixed and viral pathogens and for determining the best cut-off values. For this analysis, a total of 155 subjects with confirmed bacterial/mixed or viral infections were included.
Time frame: Total length of time the subject will be in the study is one month after enrollment.
Neutrophil Lymphocyte Ratio Cut-off for Distinguishing of Viral and Bacterial/Mixed Pathogens
The area under the receiver operating curve (AUROC) for NLR at enrolment was used to characterize their utility for discriminating bacterial/mixed and viral pathogens and for determining the best cut-off values. For this analysis, a total of 155 subjects with confirmed bacterial/mixed or viral infections were included.
Time frame: Total length of time the subject will be in the study is one month after enrollment.
CRP Cut-off for Distinguishing of Viral and Bacterial/Mixed Pathogens
The area under the receiver operating curve (AUROC) for CRP at enrolment was used to characterize their utility for discriminating bacterial/mixed and viral pathogens and for determining the best cut-off values. For this analysis, a total of 155 subjects with confirmed bacterial/mixed or viral infections were included.
Time frame: Total length of time the subject will be in the study is one month after enrollment.
Procalcitonin Cut-off for Distinguishing of Viral and Bacterial/Mixed Pathogens
The area under the receiver operating curve (AUROC) for PCT at enrolment was used to characterize their utility for discriminating bacterial/mixed and viral pathogens and for determining the best cut-off values. For this analysis, a total of 155 subjects with confirmed bacterial/mixed or viral infections were included.
Time frame: Total length of time the subject will be in the study is one month after enrollment.
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The Etiologies of Pneumonia in Children Expressed in Percentages of Enrolled Subjects.
Any pathogens identified as a cause of pneumonia based on laboratory tests such as culture, serology, and molecular assays.
Time frame: Total length of time the subject will be in the study is one month after enrollment.
The Clinical Outcome in Pneumonia Pediatric Subjects
Data and specimens were collected at enrollment and 14 days after enrollment. A telephone interview was done on day 30 to assess the clinical outcome. The outcome report was expressed in percentages of enrolled subjects and the proportions of subjects within each category defined by cured and death.
Time frame: Total length of time the subject will be in the study is one month after enrollment.
The Percentage of Sign and Symptom of SoC Procedure
The percentage of sign and symptom of SoC procedure of pneumonia pediatric subjects expressed in percentages of identified pathogens. The proportion of subjects within each category is defined by bacterial or mixed infections and viral infections. We analyzed only 155 subjects with confirmed etiology for this secondary outcome.
Time frame: Total length of time the subject will be in the study is one month after enrollment.
Performance of Combined Factors in Differentiating Viral and Bacterial Infections
We explored the combination of significant factors/variables in the multivariate analysis for their overall sensitivity and specificity for discriminating bacterial/mixed and viral infection. The combination variables were CRP ≥5.70 mg/L + fever, CRP ≥5.70 mg/L + dry season, and CRP ≥5.70 mg/L + fever + dry season. For this analysis, a total of 155 subjects with confirmed bacterial/mixed or viral infections were included.
Time frame: Total length of time the subject will be in the study is one month after enrollment.
Number of Strains of Circulating Respiratory Viruses and Pathogens in Pediatric Pneumonia Subjects
Any pathogens identified as a cause of pneumonia based on laboratory tests such as culture, serology, and molecular assays. We analyzed only 155 subjects with confirmed etiology for this secondary outcome.
Time frame: Total length of time the subject will be in the study is one month after enrollment.