[Omega]

There have actually be several viruses going around recently.  BadTrans.B (I think that's it's name) is a common one.  I think it's more likely that he was infected and it automatically forwarded to you than it is that he sent you a virus intentionally.  I'd write another email to him saying you got a virus from him, and asking what the status is of your items, or just writing to check the status of the products, and seeing if he mentions something about it.  I thought I'd gotten the BadTrans.B virus, but it turned it was another computer that I had entered my email account information into, so I got all the emails saying that I tried to send dozens of people virus-infected emails.