Upon examining the pus from the infected toe, when no evidence of any kinds of cell is found, it can be concluded that the causative microbe is virus.
Pus is a thick, yellow-whitish fluid that can be seen to be accumulated at the site of infection. It is actually the dead white blood cells' debris that accumulate to fight the infection and protect the body from further infection.
Virus are the acellular creatures. These are considered to be living when present inside any living organism. They do not exhibit any properties of a cell, hence are called acellular. This is the reason why virus could be the causing organism for the disease when no cellular organism was found.
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