I would have her tested a 2nd time and then move on. 

My mom has cancer so we have had a lot of talks with the doctors about all of this and how it can affect her. Quarantining a person who is asymptomatic for 2 weeks really doesn't do anything. If they have the virus it is in their system longer than that. So they can still get someone sick. Testing is the only way to know. Even though there are false negatives, you are better off testing than just quarantining her. Also someone who is asymptomatic is MUCH less likely to transmit the virus. You can still have her wear a mask and just take proper protocols in your home: Disinfecting areas with Lysol, washing hands, don't eat and drink after eachother, etc.

I think people vary in their concern about COVID. There are people on here who thought all visitation should stop for the duration of the pandemic, and others who don't worry about it much.

I asked DH back in March if he would have still had SS20 visit if this happened when he was younger and he said no - but DH is immunocompromised and he feared BM would try to get him sick on purpose (she just might).  Now that my state is below 1% positive rate, and this has gone on for six months, my guess is that he would have started having him come over again by now.

We will all likely be dealing with this for the next year, so not visiting her mom probably isn't realistic. I'd have her tested again as JMTB said, and keep your distance for a couple of weeks.

YSD is week on/week off. I know that they are careful at BM's - but they also live in a complex with a lot of other immediate families and people, much different than a single home, and in the city. They are doing more social things lately too. More than us. We have to remind YSD of this when she gets bent out of shape if DH and I go to the outdoor cafe near us (all outdoor seating, VERY spaced apart, masks required. Our only trips out otherwise are to the store once a week.  Or truly necessary errands which we space apart.

There's nothing we can do. There's exceptions for a CO in COVID guidelines. It sucks, but here we are.

COVID-19 has caused me a lot of anxiety. DH takes daily antibiotics to protect him from recurrent infections due to another health condition. He has been hospitalized twice this year for related issues (once for a severe reaction to a previous antibiotic he was taking and a second time for a severe infection, after which point he was put on permanent daily antibiotics). This health condition also causes him to develop blood clots. He was recently sent to the emergency room for a DVT, at which point he was put on blood thinners. Due to all of this, DH is at high risk for complications if he gets COVID-19. BM knows this, however, she believes that "kids can't get COVID-19", so SSs are out socializing. They are spending this entire week in an RV with their friends, one of whom came back from visiting an out-of-state COVID hotspot two days before they left on their RV trip. They are coming back on the same day that visitation starts. DH has said he will refuse visitation, but that has caused a drama fest in the past. 

From my perspective, it is difficult to manage COVID if you are in a high conflict situation and there is a difference of opinion on risk or different risk tolerance across the two households. I've had to try to push my own anxiety aside and just focus on what we can do to protect DH when SSs are with us. For example, whenever he is riding in the car with SSs, they now all wear masks. If inside, I've asked that he maintain a distance from them. 

We sent DS11 out of state to states that were on a list for suggested quarantine for 14 days upon his return. I know that he wore a mask when he was out in public. No one he was around has gotten sick and we had my baby shower with friends and family no masks. We were outside but everyone is good. I also had a bridal shower at my house for my best friend we were mostly outside and kept distance and everyone had on masks. I wore one mostly to make others feel comfortable but I honestly did not care and I am 7 months pregnant.

I still go to the store and go out and about. I have been exposed more than once for sure. A woman I worked with had it and was out for a few weeks, she is in another building but she was in close proximity with my husband. DH several months ago had a cough and shortness of breath at times right after she went out. Called the doctor he was not concerned DH was never tested. I am thinking he had it and there I am with no symptoms or nothing and perfectly healthy. DH is type 1 diabetic by the way so he is technically considered high risk.

My elderly grandmother was in the hospital and after she was discharged was notified one of her roommates had tested positive, she was exposed and nothing at all. My mom was exposed as well since she was seeing her in the hospital and nothing at all for her as well.

Are people getting sick yes, are people dying from the virus yes. I still think they do not know enough about all of it to really sit there and say who will get it and who will not. I wear a mask we do not go out to eat anywhere and we wash our hands more. Other than that we are trying to live our lives and letting our DS be a kid as well. He will be playing football soon.

HCBM did not comply with the stay-at-home order when it was in effect.  BM dropped skids off with friends the whole time and has been lackadasical about mask wearing, etc., as well.  She even refused to have SS tested a few weeks ago after we called the local COVID hotline and described symptoms he was having, based on her description.

So far, DH has missed like 10 days of parenting time--and hasn't seen them in 6 weeks--because of her behavior.  My bio-DD is with us 100% after her dad ghosted her almost 3 years ago.  I'm terrified of getting it an having her in a bad position, and I have risk factors, so it's a thing.

Now it's time to decide how they will attend school in the fall.  Now BM is all concerned about Covid and wants them in on-line classes.  Neither one of them has an ounce of motivation and they both need to be away from her, so DH thinks that's a mistake, but BM is hell bent on it, so I suspect she'll select it, regardless of DH's preference.

We're in that situation.  DH and BM have a 2/2/5/5 schedule and BM has been very clear that she is going to live her life as she pleases and no one is going to tell her what to do.  She has people over to her house (sometimes large groups), she goes to (and has hosted) parties, she and her husband have traveled, including by plane, and she does not wear a mask or otherwise take precautions.  Our state just started a mask mandate, but it's not being widely enforced in our area.  When I make the skids wear masks, they tell me that BM not only doesn't have them wear masks, she tells them she doesn't want them to wear masks!

Early on we had BM keep the skids for a couple weeks because we were worried about Covid and it became apparent she wasn't taking any precautions (initially she promised she would).  When our state's stay-at-home order was struck down and BM was no longer doing anything wrong from a legal perspective, we gave in and started doing our regular schedule again.  Now I've resigned myself to the risk.  We have them wash their hands frequently, I am a mad woman with the cleaning and sanitizing, and I limit their contact with our baby to the extent I can.  I feel better now that DD is months older than she was when all this first started, and her immune system is that much more developed.  Sometimes I resent DH for putting me into this position in the first place, but by and large I'm OK with it now - maybe because 5 months have passed and no one has gotten sick yet.  Of course, school starts in a few weeks, and the skids will be headed to the local germ factory.  We had a choice between on-line and full time in-person learning, and of course BM made the decision that they'd be going in person.  We'll see how that works out.