Hi all my dd wasn't well last week as she had a continuous cough, she was testing negative on lft and negative pcr so went back to school. Yesterday she started being abit snotty and coughing again and as my ds was testing on lft for school I tested dd while we had them out and she tested positive so I tested again and it was positive again albeit abit more faint but there. My question is does the line have to be as thick as the control line? Its definitely there and pink and I know a line is a line no matter how faint but does how thick it is matter? Please forgive me for sounding stupid but it's the first positive test I've seen in person so just wanted to check. Also does it matter if the second was fainter than the first a line is still a line right? Pcr is booked and I'm sure the school are not going to be happy she's off again for another pcr but it can't be helped and I will speak with the school tomorrow.