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Fig. 1 | BMC Research Notes

Fig. 1

From: Detection and characterization of polioviruses originating from urban sewage in Yaounde and Douala, Cameroon 2016–2017

Fig. 1

Temporal pattern of the isolation of non-polio enteroviruses and vaccine polioviruses in the cities of Yaounde and Douala from January 2016 to December 2017. The number of individual virus types (SL1: Sabin type 1; SL2: Sabin type 2; SL3: Sabin type 3; NPEV: non-polio enterovirus) isolated and culture negative samples are indicated for each months

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