Jump Kick -
Jump Kick -
If someone gets infected and is aware of it, when do they stop being contagious? How can they know if recovering at home?
my 7 year old daughter has asthma and got pneumonia last winter, is she at any increased risk if she gets the CV19?
For most respiratory viruses, you stop being contagious when you become asymptomatic. COVID has been found up to 35 days in respiratory mucous membranes, so technically you may be contagious that long although you might no be shedding any significant amounts then. However, based on preliminary data from China on how new cases are decreasing, it seems that 14 days is a better estimate. So if you're sick, stay home 7 days after the end of your symptoms.
For your daughter, theoretically, yes. But data so far shows that kids (even those with chronic conditions) are fairly protected against severe disease.
Thanks a lot.
Is there any evidence that someone with active CV19 can transmit the virus by simply breathing near someone else? Does a cough or sneeze need to be involved?
The assumption is that aerosolization (excretion of infectious particles in the air) is mainly and perhaps only caused by sneezing, coughing, spitting or other abrupt airflow disturbances like tracheal suction.
There’s evidence that virus aerosol particles can linger in the air for a few hours, and they were demonstrated in air samples from Wuhan ICUs and restrooms. But no evidence that this can be caused to a significant degree by just breathing.
However, this early on, no evidence does not necessarily mean a lot. Besides, droplets can be spread on surfaces without coughing etc. from infected persons without symptoms (preliminary studies suggest asymptomatic rates of 50-60% of all cases!!) and is probably a lot more contagious, so don’t wait for coughs before taking distancing precautions.