Research Article

Flying Syringes for Emerging Enzootic Virus Screening: Proof of Concept for the Development of Noninvasive Xenosurveillance Tools Based on Tsetse Flies

Table 1

Characteristics of the six viruses selected for tsetse fly oral infection.

Virus name (abbreviation)Family/GenusPresence of envelopeGenome featuresStrainVirus titer reported in vertebrate hostsFinal virus titer used for blood meals

Chikungunya (CHIKV)Alphaviridae/AlphavirusYesssRNA(+)LR2006_OPY1 [26]101–108 PFU/mL [27]106 PFU/mL

Dengue 2 (DENV-2)Flaviviridae/FlavivirusYesssRNA(+)16681 [28]102–107 PFU/mL [29]106 FFU/mL

Zika (ZIKV)Flaviviridae/FlavivirusYesssRNA(+)PF_25013-18 [30]102–106 PFU/mL [31]106 PFU/mL

African swine fever (ASFV)Asfaviridae/AsfivirusYesdsDNALIV13/33 [32]102.5–103.5 HAD50/mL in wild animals [33]
Up to 108 HAD50/mL in domestic animals [34]
103 HAD50/mL

Peste des petits ruminants (PPRV)Paramyxoviridae/MorbillivirusYesssRNA(−)Maroc2008 [35]106–109 RNA copies/mL in domestic animals [36]107 RNA copies/mL

Bluetongue (BTV-8)Reoviridae/OrbivirusNodsRNASerotype - 8 Italy [37]106–108 particles/mL in wild animals [38]
104–107 DL50 in domestic animals [39]
105.2 TCID50/mL

ssRNA(+), positive-sense single-stranded RNA; ssRNA(−), negative-sense single-stranded RNA; dsRNA, double-stranded RNA; dsDNA, double-stranded DNA; PFU, plaque forming unit; FFU, focus forming unit; HAD, hemadsorbing dose; TCID, tissue culture infectious dose.