"infection with SARS-CoV-2 usually doesn’t feel like a cold."

[X-Files]

"However, infection with SARS-CoV-2 usually doesn’t feel like a cold. Fewer than 20% of infected people who eventually show up at a hospital report having had a sore throat or runny nose. During the first few days of being infected, you’re more likely to have a fever, dry cough or, peculiarly, lose your sense of smell or taste.

Most likely, though, you won’t feel sick at all. When UCSF researchers tested people for SARS-CoV-2 in San Francisco’s Mission District, 53% of those infected never had any symptoms. “That’s much higher than expected,” says Monica Gandhi, MD, MPH, a UCSF professor of medicine with expertise in HIV. Surveys of outbreaks in nursing homes and prisons show similar or even higher numbers. “If we did a mass testing campaign on 300 million Americans right now, I think the rate of asymptomatic infection would be somewhere between 50% and 80% of cases,” Gandhi says. Millions of people may be spreading the virus without knowing it, she points out, making asymptomatic transmission the Achilles’ heel of efforts to control the pandemic – and highlighting the importance of universal masking.

https://www.ucsf.edu/magazine/covid-body

 

[cheapseats]

Well, Moderna at 95% & Pfizer at 90% none of this will matter soon, very soon.

 

[X-Files]

"

Both vaccines are mRNA technology.
Pfizer's vaccine won't be pushed aside in the short term to be replaced by Moderna’s, none of the companies have the capability to supply the doses needed to the world in a timely manner. The rest about the doses and timeline needed for the Pfizer vaccine is different than it being pushed aside because countries need to buy special freezers which some countries already have.

The only way the Pfizer's vaccine will be pushed aside in the short term is if many of the other companies in vaccine development are approved and their vaccines are more like Moderna's in terms of storage.
No one expects this to happen.
Is there a possibility of it happening? In the short term highly unlikely
Will it happen in the long term? Possibly

The number of doses needed are so high and not one single company can produce that amount in a timely manner. Pfizer is producing 50Mln doses in two months and Moderna's production is similar, We'll be lucky if we can get 5% of the word population vaccinated by Mid 2021 with these 2 vaccines.
Also countries like Canada that have pre purchase orders for 20 million doses (10 Mln people) or UK who has 40 Million doses (20 Mln people) would not all of a sudden cancel their orders and wait for an option to purchase more vaccines down the road possibly in a years time from Moderna meanwhile accruing more unnecessary cases and deaths from the virus, and not being able to reopen their economy. For the mere investment of buying fridges which the UK had already done at government level.
There are many countries that have these pre purchased orders.

https://terb.cc/xenforo/threads/moderna-vaccine-94-5-effective-great-news.730369/page-2#post-6870950