Which one is more dangerous? Virus or Bacteria ?
It’s hard to say which one is more dangerous (harmful) between bacteria and viruses in general term. Both can be useful and harmful to human, animal and plants depending on their association and adherence, virulence properties and host susceptibility and permeability.
Small could be more beautiful and more harmful as well. We are living in sea of viruses and even our genome comprises 8% of viral genome. Still, there are only few viruses known to cause the dreadful diseases. Thanks to our immune response to these foreign entity. Their small size, easy spread and fast replication makes them highly dangerous but these are also the most fragile living things in comparison to bacteria. Some bacteria can resist harsh environment and chemicals. They have the rigid cell wall made of thick layer as their protection and can go for dormancy covering in capsule.
In taking all these, I think the danger depends of their virulence factors.
Lecturer, Pokhara University
the means and costs of treatment, mode of transmission (how number of people/animals gets affected by virus in short time) for viral infections make virus more challenging than any other microbes otherwise, the pain and complications associated with any infections carry equal weight.