Scientists and infectious-disease experts warn that the next pandemic will most likely be caused by a virus jumping from animals to humans [1].
This prediction highlights a growing vulnerability in global health security. As the frequency of these "zoonotic spillovers" increases, the window for prevention and early detection narrows, potentially leading to widespread outbreaks that challenge existing medical infrastructures [1].
Experts said that several intersecting factors are driving this trend. Increased human contact with wildlife has created more opportunities for pathogens to cross species barriers [1]. This contact often occurs in regions where urban expansion encroaches on natural habitats, forcing animals and humans into closer proximity [1].
Environmental change also plays a critical role in this process. As ecosystems shift, animals migrate to new areas, potentially introducing novel viruses to human populations that have no prior immunity [1]. These shifts are often compounded by the ways humans interact with the environment, such as through deforestation, or the wildlife trade [1].
Furthermore, viral evolution continues to adapt to new hosts. Scientists said that viruses are constantly mutating, and some of these changes make it easier for them to infect humans and spread between people [1]. The combination of environmental instability and biological mutation creates a volatile environment for the emergence of new diseases [1].
Because these risks apply worldwide wherever human-animal interactions occur, the threat is not limited to any single region [1]. Experts said that monitoring these spillover events is essential to identifying potential threats before they escalate into full-scale pandemics [1].
“the next pandemic will most likely be caused by a virus jumping from animals to humans”
The rising frequency of zoonotic spillovers suggests that the boundary between wildlife reservoirs and human populations is becoming increasingly porous. This trend indicates that future pandemic preparedness must shift from reactive vaccine development to proactive ecological management and the regulation of human-wildlife interfaces to reduce the initial risk of transmission.
