there always is the avg app for iphone android blackberry and windows phone but it does take up a lot of room but if you are worried it is worth it and if your cell has a micro SD get one bigger then 8 GB so avg will work and you can still play games and have lots of contacts.
Virus shields protect your computer from the viruses.
To protect you from any virus infection
Capsid
By downloading latest anti virus software
You have to get an anti-virus program, Also a firewall and internet secuity
get norton security!
Capsid
You are given vaccinations when you go to the doctor's office to help protect you from it.
There is actually a text message that can do this. I'd search Google for something like "turn off virus text message".
An antivirus program
to protect the comuterp by a virus
it protects your computer from virus's