Horsepox: Framing a dual use research of concern debate

[Dual-use research on modified pathogens in the laboratory: What framework for what issue?]

Technological advances in synthetic biology have made in vitro modification, or even creation, of viruses easier and more affordable. Several research studies using synthesis of potential pandemic pathogens led to controversies in the 2010's. More recently, the hypothesis that Covid-19 pandemics could originate from a lab escape is still under debate. In France, a legislative vacuum remains concerning the synthesis of modified pathogens. Initiating a collective reflection process towards setting of a legal framework on this type of work is timely so that research continues to provide profit to society rather than hazard.

Rapid Proliferation of Pandemic Research: Implications for Dual-Use Risks

The COVID-19 pandemic has demonstrated the world's vulnerability to biological catastrophe and elicited unprecedented scientific efforts. Some of this work and its derivatives, however, present dual-use risks (i.e., potential harm from misapplication of beneficial research) that have largely gone unaddressed. For instance, gain-of-function studies and reverse genetics protocols may facilitate the engineering of concerning SARS-CoV-2 variants and other pathogens. The risk of accidental or deliberate release of dangerous pathogens may be increased by large-scale collection and characterization of zoonotic viruses undertaken in an effort to understand what enables animal-to-human transmission. These concerns are exacerbated by the rise of preprint publishing that circumvents a late-stage opportunity for dual-use oversight. To prevent the next global health emergency, we must avoid inadvertently increasing the threat of future biological events. This requires a nuanced and proactive approach to dual-use evaluation throughout the research life cycle, including the conception, funding, conduct, and dissemination of research.

Diverse variola virus (smallpox) strains were widespread in northern Europe in the Viking Age

Smallpox, one of the most devastating human diseases, killed between 300 million and 500 million people in the 20th century alone. We recovered viral sequences from 13 northern European individuals, including 11 dated to ~600-1050 CE, overlapping the Viking Age, and reconstructed near-complete variola virus genomes for four of them. The samples predate the earliest confirmed smallpox cases by ~1000 years, and the sequences reveal a now-extinct sister clade of the modern variola viruses that were in circulation before the eradication of smallpox. We date the most recent common ancestor of variola virus to ~1700 years ago. Distinct patterns of gene inactivation in the four near-complete sequences show that different evolutionary paths of genotypic host adaptation resulted in variola viruses that circulated widely among humans.

[The eradication of infectious viral diseases endangered by advances in synthetic biology]

The eradication of infectious diseases is one of the oldest dreams of mankind. It has been materialized only once in History with smallpox in 1980. Considerable efforts are being developed against poliomyelitis viruses since 1988, but the ultimate goal of eradication is not yet achieved. Paradoxically, while the objective of having eradicated these two viral diseases is approaching, synthetic biology multiplies the prowesses of virus "neosynthesis", imperiling at least virtually the durability of these advances. This article emphasizes the potential of a new biology on one side, and the difficult reality of the fight against infections on the other.