Gene sequencing to expand understanding of respiratory pathogens
A visitor walks past an illuminated coronavirus model during an exhibition at the Jardin des Plantes, in Paris, France, Nov. 12, 2022. (Reuters Photo)


Cracking genomic sequencing allowed the world to track new emerging variants of coronavirus throughout the pandemic and now researchers plan to use it to understand other respiratory pathogens' hosts, from influenza to respiratory syncytial virus (RSV).

The work aims at shedding more light on known threats and, potentially, emerging ones, the team at the Wellcome Sanger Institute, working with the United Kingdom Health Security Agency, said.

The world has never had access to the real-time information for these viruses that scientists obtained on SARS-CoV-2 through sequencing millions of genomes, Ewan Harrison, head of the new Respiratory Virus and Microbiome Initiative, told reporters on Monday.

That includes granular detail on how they transmit as well as how they evolve in the face of the human immune response.

"We hope that by expanding our ability to sequence these viruses routinely, we can build upon the work that's going on COVID-19, and hopefully supercharge research efforts to understand the transmission of these viruses, but also to help develop new treatments and vaccines," Harrison said.

The aim is to make genomic surveillance of this type the norm, to inform public health responses and act as a blueprint for other countries that want to do the same thing, he said.

The work will begin later this year by using leftover material from swabs taken for COVID-19 diagnostic purposes, sequencing SARS-CoV-2, influenza, RSV and other common respiratory viruses in a combined process.

While some viruses targeted typically cause mild, cold-like symptoms, others can cause serious illness, particularly in vulnerable populations.

Cases of COVID-19, flu and RSV have all surged this winter in the northern hemisphere in a so-called "tripledemic" that is seriously pressuring hospitals in several countries.

The team said that, in the future, the initiative could answer questions about outbreaks like this.

It also aims to sequence everything found in a single nose swab, including the viral, bacterial and fungal species present and how they change during infection.

The five-year initiative aims to begin work in spring this year and is funded by Wellcome.