Return a zero when WormBase central search gives an output other than a digit [PARASITE-231]
Return a zero when WormBase central search gives an output other than a digit [PARASITE-231]

EnsemblGenomes/eg-web-parasite,EnsemblGenomes/eg-web-parasite,EnsemblGenomes/eg-web-parasite,EnsemblGenomes/eg-web-parasite