Utsurun desu.

I've been trying to think of a suitable title for this manga series in English, but it's quite difficult, seeing as it's a play on words in Japanese. The only things I can think of our:

1) 伝染るんです。（It infects you.）
Ie, writing the title both in English and Japanese, but keeping it simple and to the point.

2) Something like "Shot of Infection", using shot to mean both カメラの写真 and 注射。

If I think of anything better, I'll let you know.