Penelitian ini menilai peran genetik rotavirus terhadap keparahan diare pada populasi bayi dan balita di rumah sakit dan puskesmas, pada 2005?2008. Keanekaragaman genotipe rotavirus sangat tinggi; 7 variasi genotipe umum (didominasi G1P[8]) dan 52 genotipe tidak umum (didominasi G4G9P[8]). Rotavirus genotipe tidak umum terdistribusi merata di rumah sakit dan puskesmas. Terhadap genotipe umum, genotipe tidak umum mempunyai PR 1,2 pada keparahan diare. Karakter gen VP7 berperan penting/menentukan peran genotipe GP pada keparahan. Status nutrisi memodifikasi efek peran genotipe pada keparahan diare. Faktor umur dan faktor pemberian sendiri antibiotik secara independen berperan menentukan keparahan. Koinfeksi tidak signifikan merubah derajad keparahan diare infeksi yang diakibatkannya.

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This study assessed the rotavirus genetic role on diarrhea severity in infants and young children population in hospitals and primary health centers, at 2005-2008. Genotype diversity of rotavirus is very high; 7 variations common genotype (dominated by G1P[8]) and 52 uncommon genotypes (predominantly G4G9P[8]). Rotavirus uncommon genotypes are distributed equally in both health centers. Against common genotypes, uncommon genotypes have a PR 1.2 in the severity of diarrhea. VP7 genes play an important character and define the role of GP genotype. Nutritional status modify the effects of genotype on the severity of diarrhea. Age and antibiotic are risk factors for severity of diarrhea, independently. Coinfection did not significantly alter the degree of severity of acute infectious diarrhea.