आय - ओंखारनाया भेरिचिला - जस्तार भाइरास ( भेरिचिलाया आय - ओंखारनायनि थाखाय मेडिकेल मुं ) बुंनाय मोनसे भाइरासजों सोमजिहोजायो ।
Chickenpox is caused by a virus called the varicella zoster virus varicella is the medical name for chickenpox .