Q: suspicious link - virus or jailbreak?

Viruses for iPhone do not exist. There is nothing to worry about. The only thing you may worry about it is asking you for apple id info or personal information.

If you updated to 9.3.5 then there is no need to worry about the security vulnerabilities spoken about in that article.

erika231 wrote:

I have made click in a suspicious link from a contact in WhatsApp, and after I updated my iPhone 6 to iOS 9.3.5.  How can i find out if my iPhone is infected with some virus or jailbreak?

If you have installed 9.3.5 the vulnerability has been patched so no further risk. However, in your case if you clicked on the link and provided any personal info, you could have been phished. Please check out the following articles:

http://www.apple.com/legal/more-resources/phishing/

If you think your Apple ID has been compromised - Apple Support