A New York mum was asymptomatic and had no idea she had contracted Covid-19 when she passed the virus to 17 of her 18 children.
Brittany Jencik, of Penfield, New York, has 18 children - some of them adopted - says she only begin to feel ill at a later stage of her battle with the virus.
By then, she'd passed it on to 17 children, who all live in the same home with her.
She said it was "like a freight train".
Speaking to local ABC13 news affiliate WHAM, Jencik said it was "terrifying".