- Tea-tree and eucalyptus essential oils were shown to inactivate airborne influenza virus in an aerosol study (Aerosol Science & Technology, 2012).  
- A PLoS Pathogens paper reported that Zn²⁺ inhibits coronavirus and arterivirus RNA-polymerase activity in vitro, and that zinc-ionophores (e.g., pyrithione) block viral replication in cell culture.  
- Participants discussed extracting zinc pyrithione from commercial anti-dandruff shampoo as a DIY zinc-ionophore source, noting its low water solubility, topical use, and potential toxicity if ingested.  
- Practical sourcing ideas included checking chemical suppliers, pharmacists, and marine-paint manufacturers (zinc pyrithione is also an antifouling agent).  
- A $29 million Sinopec investment to build ten new melt-blown fabric lines was cited as a rapid scale-up example for global N95 mask production.  
- The Atlantic article “How Will the Coronavirus End?” was shared as a critique of pandemic preparedness despite high readiness indices.  
- A 1999 paper on zero-knowledge proofs of possession of digital signatures was linked, highlighting cryptographic techniques relevant to decentralized identity and Bitcoin applications.