Study Reveals Humans Transmit More Viruses to Animals Than Vice Versa

A comprehensive analysis of viral genomes indicates a higher frequency of viruses jumping from humans to other animals, posing significant conservation and public health concerns.

A new study by UCL researchers found that humans are more often the source of viruses for other animals, challenging the common perception of humans mainly receiving viruses from animals.
The analysis covered nearly 12 million viral genome sequences, identifying thousands of viral lineages and host jumps, with a majority from humans to other animals.
Viruses like SARS-CoV-2, MERS-CoV, and flu viruses are among those most commonly transmitted to animals by humans, affecting both wild and domestic species.
The spread of human viruses to animals can threaten endangered species and impact food security through the potential culling of infected livestock.
Understanding virus transmission dynamics between humans and animals is crucial for predicting and managing future outbreaks and conserving wildlife.