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Table 1 Real-time PCR primers and probe for dengue virus cDNA identification*

From: A local outbreak of dengue caused by an imported case in Dongguan China

Primers/probe

Sequence (5'-3')

Working concentration

Length of amplified fragment (bp)

Type specificity

Den-FP

GCATATTGACGCTGGGAGAGA

0.5 μM

68

Universal for all four types

Den-RP

GGCGTTCTGTGCCTGGAAT

0.5 μM

  

Den-probe

FAMCAGAGATCCTGCTGTCTCMGB

0.25 μM

  

Real-time PCR program

Pre-denature at 95°C for 45 s, denature at 95°C for 20 s, annealing at 65°C for 20 s, elongation at 72°C for 30 s, 40 cycles, elongation at 72°C for 1 min, keep at 4°C

  1. *From diagnostic criteria for Dengue Fever (DF) (WS216-2008) enacted by the Ministry of Health of People's Republic of China.