An alternative:
"Anitoa systems, a Silicon Valley biotech company has demonstrated a
solution for rapid on-site nucleic acid test of the 2019 novel coronavirus (2019-nCoV). Anita combines a high
performance ultra-portable Real Time Polymerase Chain Reaction (qPCR) instrument called Maverick, with an
innovative “one-step” reverse transcription qPCR (RT-qPCR) reagent for testing 2019-nCoV."
"If the sample contains the RNA of the Zika virus, the test area turns purple."
https://www.eurekalert.org/pub_releases/2016-05/uot-rld05061...