Final answer:
The author views new viruses as a threat that arise and spread due to modern living conditions and human interactions with the environment, with few treatments available, making prevention and management a complex challenge.
Step-by-step explanation:
The author's view on emerging viruses suggests that modern conditions, such as high-density populations due to urbanization and deforestation, are conducive to the circulation and evolution of these pathogens. The emergence of viruses like Ebola and H5N1 is linked to both natural ecosystems and human influences, such as domestication of birds and invasion of wildlife habitats.
Furthermore, the lack of effective treatments for many viral infections makes them a significant threat to global health. Evolution of viruses and their interaction with human activities underscore the complexity of managing and preventing outbreaks in the future. The author also references the historical context, highlighting that understanding the transmission and cause of these diseases has improved over time, changing the way humans respond to epidemics.