Just a word of warning if you need to take a child to be swab tested; take someone with you
I just had to hold down my one year old with my knees, hold down arms with my arm, depress his tongue and swab tonsils while he's gagging for 15 seconds THEN shove the swab up his nose and poke around there for 15 seconds
All HIGHLY stressful, not to mention not contaminating the swab and then sticking all the right labels in the right places - I'm so glad it's all over