Figure 1From: Concurrent infections by all four dengue virus serotypes during an outbreak of dengue in 2006 in Delhi, IndiaAgarose gel analysis of the product from RT-PCR followed by second-round nested PCR of RNA samples. From left to right, lane 1: 100 bp molecular marker, lane 2: sample positive for DEN-2 (119 bp), lane 3: sample with concurrent infection of DEN-3 and DEN-4, lane 4: sample positive for DEN-3 (290 bp), lane 5: sample positive for DEN-4 (392 bp), lane 6: negative sample, lane 7: sample positive for DEN-4 (392 bp), lane 8: sample positive for DEN-3 (290 bp) and lane 9: negative control.Back to article page