A new bat coronavirus similar to Mers-CoV has been discovered in Brazil. Researchers are uncertain about its risk to humans and plan further experiments in Hong Kong. The findings underscore the need for ongoing surveillance of bats as viral reservoirs and highlight the genetic diversity of coronaviruses.
A recently discovered bat coronavirus in Brazil has raised concerns due to its genetic similarities with the Middle East respiratory syndrome virus (Mers-CoV). Conducted by researchers from São Paulo and Ceará, in collaboration with Hong Kong University, the new virus shares approximately 72 percent of its genetic sequence with Mers-CoV. The spike protein, essential for viral attachment to host cells, exhibits 71.74 percent similarity to that of the Mers virus.
Although current findings show potential interactions between the new virus and mammalian cell receptors, researchers remain uncertain about its capability to infect humans. Plans for further experiments are underway at high-biosecurity laboratories in Hong Kong to assess the potential risks this virus may pose to human health. Experts emphasize that monitoring and identifying circulating viruses is crucial for understanding transmission risks across species.
In the study published in the Journal of Medical Virology (JMV), 423 oral and rectal swabs were analyzed from 16 bat species in Fortaleza, Brazil, revealing seven coronaviruses in five swabs. Notably, the new virus has a close genetic relationship with Mers-related coronaviruses found in both humans and camels. The research highlights the genetic diversity and novel lineages among circulating bat coronaviruses, underscoring the importance of continuous epidemiological surveillance.
Researchers emphasize the critical need for ongoing monitoring efforts, as bats are significant reservoirs for emerging viruses. Dr. Ricardo Durães-Carvalho called for a systematic, integrated approach to data collection across sectors to enhance public health systems in preventing potential epidemics and pandemics.
The discovery of a new bat coronavirus in Brazil highlights the importance of ongoing surveillance in identifying potential risks to humans. While the virus shows genetic similarities to the Mers virus, further research is required to determine its capacity for human infection. Continuous monitoring of bat populations is essential to mitigate public health risks associated with emerging viruses.
Original Source: www.independent.co.uk
