Also:
"The room had six air changes per hour and was fitted with efficient filters, ultraviolet irradiation and other safety measures to inactivate the virus before the air was reintroduced into the room.
That may explain why the researchers found only 74 virus particles per liter of air, said John Lednicky, the team’s lead virologist at the University of Florida. Indoor spaces without good ventilation — such as schools — might accumulate much more airborne virus, he said."
A post from a running acquaintance, a guy in his late 40s and in incredibly good shape before he fell ill:
“In many ways, I feel resigned to retire from activity and give up completely on any future athletic goals beyond an occasional 5k race or a 5 mile run through the neighborhood in the future or 10 mile scenic bike ride. But I don’t want to prematurely resign myself from my goals and retire from some of those passions. My PCP has advised me not to do anything until I go through proper testing and go through complete stress test and other tests to ensure it’s safe to begin training again.
I spent 4 days in the hospital. I contracted COVID a month ago today, with symptoms beginning on 7/15. I’ve been out of the hospital for 2 weeks now. I need a 3 hour nap every day and lack all energy. I’m unable to eat properly or digest things appropriately.”
Thank you, @3SailAway . The articles and other testimonials I read are all about people who were quite sick with Covid or analysis just after infection. Hopefully the UK will be able to provide some studies soon an positives (they have plenty) that were asymptomatic. Those kids we keep reading about who tested positive and had no symptoms, how do their lungs and heart look? We have tons of asymptomatic people tested in Germany and Nordic counties back in March, April, May - how do their hearts and lungs look? Hopefully we will get some of those answers soon.
@suzyQ7 I’d love to know how the lungs of my non-hospitalized son look now vs when he had his xray back in March. I’d love to know how his heart function is too (though that wasn’t tested back then).
But someone has to pay for it OOP. 100% OOP. It was 2K to get his xrays back then (and readings, etc).
We’ll wait for studies and keep hoping recovery will be complete at some point. When we read about the heart issues even from those who weren’t severely impacted it definitely gets scary.
I’ve suggested the lad donate blood to at least see if he has antibodies, but unfortunately he’s needle phobic (sigh).
And if some of the studies are correct, he might not still have antibodies even if he would have before. Those seem to wear off. It’s been 5 months. I haven’t seen any T Cell tests - don’t think they have them for average people yet.
If we get to a situation where we can all go scuba diving again I’ll make sure his lungs look up to it by insisting he get checked (likely at our expense). Until then I don’t think it’s worth the cost just to know. We’ll just hope he slowly improves.
It probably depends upon how fit they are - how effectively their body can use the supplies it has (oxygen, etc).
With my guy now, he can handle sedentary things like normal. When he exerts himself he gets fatigued quickly and it can last a day or longer. With runners I know (of) it’s similar. They can’t do what they used to do, but they can function with the basics as normal.
On a good note, my guy thinks he is slowly improving for stuff around the house, but take that for what it’s worth because he also tells us he doesn’t really try the other things anymore.
I find it hard to believe that there aren’t 500 grant apps in right now to check the frequency of heart damage post COVID. Not a difficult study to do, but expensive. And a potential game changer.
There are a few professional athletes who have tested positive. In the tennis world, men’s #1 Djokovic, who tested positive a month or so ago but was asymptomatic will be playing tournaments starting in a week or so. It will be interesting to see if he has any fatigue or other issues or whether his heart and lungs are up to it.
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From what I’m reading it’s not everyone who gets affected. It’s something like 20-30ish percent pending which article I’m reading. Most still won’t have problems.
The huge difficulty is predicting who will and who won’t, but that’s true with almost every aspect of Covid. Med school lad told me doctors there can’t even reliably predict who will live or die when they see them in the hospital. Some they think are handling it well drop off quickly and some they told next of kin not to get up hopes pull through.
It seems to all depend upon the individual, how much Covid load they got, and what it gets into inside the body - then add how the body reacts to it once it’s there.
H and I were just talking about how death numbers remain lower. Highs in bad states now are “just” in the 100s and 200s per day. Not long ago that was something like 600-800? I like to think medical knowledge and treatments are advancing saving many who wouldn’t necessarily have made it if they’d been among the first to get it.
There are some very, very intelligent people working on this worldwide. I’m super thankful for each and every one of them.
Perhaps it could be something like the following for those who suffer some cardiovascular after-effects from COVID-19:
Younger non-athletes: plenty of unused excess cardiovascular capacity, so may not notice a reduction (until decades later) due to COVID-19 after-effects.
Older non-athletes: little or no excess cardiovascular activity, so may be limited by any reduction due to COVID-19 after-effects.
Athletes: plenty of unused excess cardiovascular activity, but will notice any reduction due to COVID-19 after-effects due to it causing obvious limitations on exercise.
A heart study in Germany looked at 100 people who had recovered from covid. Of these, 33% were hospitalized, 49% recovered at home from minor to moderate disease, and 18% were asymptomatic. The study eliminated anyone who had been referred for cardiac care for their covid; in other words, before the study, there was no belief that these people had had cardiac involvement. The study also included a matched cohort of people who hadn’t had covid.
Two to three months after the participants first tested positive, they underwent a barrage of heart tests, including MRIs. The results were fairly terrible. Of the 100 patients, 60 had evidence of myocardial inflammation. For almost all the heart measurements, the people that were not hospitalized were just as likely to have bad measures as the people that were hospitalized. The time elapsed from the start of infection wasn’t correlated with the badness of the measures.
Moreover, 36% of the group still had shortness of breath or exhaustion, two to three months on.
Bottom line: A huge percentage of this group of hospitalized, not hospitalized and asymptomatic covid patients had heart problems. People who weren’t hospitalized (including asymptomatic people) were just as affected as people who were hospitalized. The patients who’d tested positive three months before were no better than the ones who’d tested positive two months before: these patients weren’t getting better.
The morons who think this is no big deal should really get this on their radar. The jama network covid podacsts are terrific. I think if people read less Daily Mail and listened to more of this it would help.
This is a sports article rather than a medical article, but it discusses the German study described above, and it raises medical concerns about a cohort of young, healthy athletes, some of whom were asymptomatic.
CDC updated guidance saying masks with vents or valves do not prevent spread of SARS-Cov-2. A few airlines have banned them, passengers will have to use a different type of mask.
The Spanish province of Galicia is banning all smoking in public. Exhaled smoke carries the droplets and smoking requires the smoker to remove the mask. Other Spanish provinces are considering this. (Any American states?)
Spain’s numbers (which were among the worst in the world) are going up again with the limited re-opening.