New technologies such as RNA interference are promising and could be harnessed against viral threats.

Judge as of October 2005, against the scientific literature then available. TRUE: peer-reviewed publications or authoritative reviews from before October 2005 show RNA interference had demonstrated antiviral effects (e.g. siRNA knockdown of viral replication in cell culture or animal models, including influenza or other viruses) and was being actively pursued as a therapeutic/prophylactic approach — i.e. the technology was genuinely promising and plausibly harnessable against viral threats. MOSTLY TRUE: such evidence exists but is thinner than implied (e.g. in vitro only, or confined to a few viruses) while the characterisation as promising still holds. MIXED: the literature of the period is genuinely divided on whether RNAi had antiviral promise. MOSTLY FALSE: RNAi existed and was studied, but as of 2005 there was no published work supporting an antiviral application, so the claim overstates an unrelated or purely speculative capability. FALSE: evidence shows RNAi had been tested against viral targets and found ineffective, or that no such technology existed as described. Because the claim is hedged ('promising', 'could be harnessed'), it does not require that any RNAi antiviral therapy was approved or clinically proven.

Set before the research began.

1. E1 Poliovirus Escape from RNA Interference: Short Interfering RNA-Target Recognition and Implications for Therapeutic Approaches PubMed Central (journal not shown on page) · 1 January 2005

   “Short interfering RNAs (siRNAs) directed against poliovirus and other viruses effectively inhibit viral replication. Although RNA interference (RNAi) may provide the basis for specific antiviral therapies, the limitations of RNAi antiviral strategies are ill defined.”

2. E2 Poliovirus Escape from RNA Interference: Short Interfering RNA-Target Recognition and Implications for Therapeutic Approaches PubMed Central (journal not shown on page) · 1 January 2005

   “Indeed, introduction of siRNAs into cells in tissue culture and in animal models can inhibit replication of several human pathogenic viruses”

3. E3 Poliovirus Escape from RNA Interference: Short Interfering RNA-Target Recognition and Implications for Therapeutic Approaches PubMed Central (journal not shown on page) · 1 January 2005

   “we show that poliovirus readily escapes highly effective siRNAs through unique point mutations within the targeted regions.”

A paper dated January 2005 [E1] states that siRNAs directed against poliovirus and other viruses effectively inhibit viral replication and that RNAi may provide the basis for specific antiviral therapies. [E2] adds that siRNAs inhibited replication of several human pathogenic viruses in tissue culture and in animal models. [E3] reports a limitation, viral escape through point mutations, but the paper frames this as a matter for therapeutic design rather than as a finding that RNAi is ineffective. The literature therefore supports characterising RNAi as a promising, harnessable antiviral technology as of October 2005.