The volumes are small, between Chi and ASX you are talking 423,000 shares or roughly $283,000 traded on a company with a market cap of $168,000,000.
Can't say I am happy having topped up in the last ten days on three occasions, I'm not about to slit my wrists though. My guess is some people are manipulating the share price right now.
I do think it would be unreasonable for Viralytics management to issue a statement given the share price has dropped substantially over the last two weeks for no apparent reason.