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In one message he told a victim: 'I ripped the condom. You didn't even know.' The court heard he then repeated the abuse when he called the victim and laughed out loud down the phone.
The victim then tested positive for HIV which showed he had a strain of the virus similar to that suffered by Rowe.
Ms Carberry QC told the jury Daryll Rowe met eight men in Sussex and two more in the north east.
After contacting them on the app they would have sex, but in each case he either refused to wear a condom during sex or 'sabotaged' it shortly before intercourse took place.
One of the texts the 26-year-old allegedly sent said: 'Maybe you have the fever cos I came inside you and I have HIV, lol. 'Rowe appeared at Lewes Crown Court today charged with four counts of causing grievous bodily harm and six counts of attempting to cause grievous bodily harm.
Caroline Carberry, prosecuting, said Rowe was diagnosed HIV positive in Edinburgh in April 2015 and had initially been taking retroviral drugs to inhibit the virus.
The treatment helps ensure HIV cannot damage the immune system and should mean the likelihood of transmitting the disease is extremely low.