[ 1/5/20 Daniels facebook page – he asked – What are the most significant open questions regarding the Covid situation?]
How effective are various simple filter technologies at reducing the viral load to the environment and thence reducing the r value? eg – how effective is exhaling into a pillowcase?
How effective are various filter technologies at preventing inhalation? In practice, in real world situations? Check a variety of simple and easily scaleable technologies – types of cotton, types of vaccum cleaner bags, etc. Again using real world conditions of flow rates of people actually using them?
What are the simplest technologies we can use that allow for as much normality as possible and simultaneously reduce the probability of transmission as low as possible (preferably under 1).
How do we protect the most vulnerable, the aged who are not able to adapt to behavioural changes?
What are the actual recorded spreads of viral load coming off people with covid19 over time. I have annecdotal reports of bimodal distributions, so some people seem to feel well, return to normal, then get a severe relapse.
I would like to see actual studies of a couple of hundred people with the full range of symptoms, but most particularly interested in those with few symptoms.
What is the actual spread of symptoms?
Can we have people track people who initially test positive without symptoms to see if they truly are asymptomatic, or if their symptoms simply are yet to develop.
I will try and get more detail from here in New Zealand, but we are doing extensive random testing, and do not appear to be detecting any asymptomatic carriers.