Jennifer Aniston has revealed the heartbreaking effects of the deadly coronavirus.The Friends actress shared a snap of her friend in the hospital, hooked up to a ventilator after the Covid-19 virus almost took his life.Jennifer, 51, captured the seriousness of the virus which has caused the world to enter lockdown.Taking to Instagram, Jen shared a picture of her friend Kevin who had been left fighting for his life.Encouraging fans to wear face masks in public, she said: "This is our friend Kevin.