Can my iphone 4 get a virus? Read below please?

When i first got my phone it was really fast. I've had it for about a year now. But all the sudden its really slow! The apps take forever to open. When you type the letters come up slowly. Recently my phone turned off out of no where and did not turn on until after 30 mins of trying to turn it on. I've had the same apps on my phone since i got it.

You won't get a virus on an iphone. Be sure to close all your backgroud apps, most leave everything opened and those take up resources.

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