Figure 4
From: Standardized positive controls for detection of norovirus by reverse transcription PCR
Detection of HRV and HAV using standardized positive controls under the same RT-PCR conditions as clinical and environmental samples. (A) Detection of HRV in clinical sample: lane 1, HAV standardized positive; lane 2, clinical sample; lane 3, negative control; lane 4, 100 bp ladder. (B) Detection of HAV in environmental sample: lane 1, HAV standardized positive; lane 2, environmental sample; lane 3, negative control; lane 4, negative control; lane 5, 100 bp ladder.