Infection rate reported in today's ND for LI is 5.38% for those tested.
Assuming that those tested are representative for the general population AND mongers are representative of the general population (these are big assumptions — but it is all I have to go on for the calculation).
back-of-the-envelope calculation:
if the infection rate is 5.38% a person will have a 50% chance of coming in contact with an infected person if they contact 12.6 people.
if the infection rate is 5.38% a person will have a 90% chance of coming in contact with an infected person if they contact 42 people.
If the person you are in contact with (say a provider) has seen those number of people — those are the odds that that person has contacted an infected person.
Doesn't mean the provider will be infected, especially if masks are used — just a simplistic calculation of the odds of being in contact with an infected person.
Now just think about a fast house or an AMP with 3 girls working and either a mamasan or other person (say the person collecting money) . In addition to the obvious contact with customers, they will be in contact with each other during the day — say when they are sitting on the couch waiting for another customer or during a lunch break and the girls take breaks together.
FWIW, I know personally (in my social sphere) of 8 people who had covid with symptoms (I don't know how many others who had it but were asymptomatic and I don't know of any who tested positive and were asymptomatic). I was not in contact with any of them (those who were symptomatic) in prior 2 weeks before they got infected. All cases were late spring 2020 except male 28 who lived with GF— he was infected 2 months ago.
1 - age 80, female, healthy, died
1 - age 62, female, obese and diabetes, died
1- age 55, male, overweight, diabetes, died
3 - age 28 male, fit and healthy, sick in bed 1 week. his 2 young kids sick with mild symptoms, wife, either asymptomatic or not infected.
1 - age 27 female, very fit (5K and 10K athlete) and healthy, only symptoms were covid toes (toes of both feet swollen and painful with purple lesions from clots caused by the virus). Could barely walk for a week, walked with pain for several weeks after, toes are still painful but getting slowly less so for past 4 months.
1- age 28, male, sick in bed for a week,, his GF he lived with either asymptomatic or didn't get infected