Question: What are some of the differences between COVID 19 and influenza viruses?

Answer passage (source: WHO):
page_title: Q&A: Influenza and COVID-19 - similarities and differences
section_headers: How are COVID-19 and influenza viruses different?
section_content: The speed of transmission is an important point of difference between the two
viruses. Influenza has a shorter median incubation period (the time from
infection to appearance of symptoms) and a shorter serial interval (the time
between successive cases) than COVID-19 virus. The serial interval for
COVID-19 virus is estimated to be 5-6 days, while for influenza virus, the
serial interval is 3 days. This means that influenza can spread faster than
COVID-19.  
Further, transmission in the first 3-5 days of illness, or potentially pre-
symptomatic transmission –transmission of the virus before the appearance of
symptoms – is a major driver of transmission for influenza. In contrast, while
we are learning that there are people who can shed COVID-19 virus 24-48 hours
prior to symptom onset, at present, this does not appear to be a major driver
of transmission.  
The reproductive number – the number of secondary infections generated from
one infected individual – is understood to be between 2 and 2.5 for COVID-19
virus, higher than for influenza. However, estimates for both COVID-19 and
influenza viruses are very context and time-specific, making direct
comparisons more difficult.  
Children are important drivers of influenza virus transmission in the
community. For COVID-19 virus, initial data indicates that children are less
affected than adults and that clinical attack rates in the 0-19 age group are
low. Further preliminary data from household transmission studies in China
suggest that children are infected from adults, rather than vice versa.  
While the range of symptoms for the two viruses is similar, the fraction with
severe disease appears to be different. For COVID-19, data to date suggest
that 80% of infections are mild or asymptomatic, 15% are severe infection,
requiring oxygen and 5% are critical infections, requiring ventilation. These
fractions of severe and critical infection would be higher than what is
observed for influenza infection.  
Those most at risk for severe influenza infection are children, pregnant
women, elderly, those with underlying chronic medical conditions and those who
are immunosuppressed. For COVID-19, our current understanding is that older
age and underlying conditions increase the risk for severe infection.  
Mortality for COVID-19 appears higher than for influenza, especially seasonal
influenza. While the true mortality of COVID-19 will take some time to fully
understand, the data we have so far indicate that the crude mortality ratio
(the number of reported deaths divided by the reported cases) is between 3-4%,
the infection mortality rate (the number of reported deaths divided by the
number of infections) will be lower. For seasonal influenza, mortality is
usually well below 0.1%. However, mortality is to a large extent determined by
access to and quality of health care.

Reviewer feedback on this answer:
This answer is excellent because it is detailed as to how the COVID virus is different from influenza, which fully answers the question.
This is a good answer.  There are a lot of comparisons between covid and the flu.

Reviewer ratings:
Excellent
Excellent

Answer passage (source: WHO):
page_title: Q&A: Tuberculosis and COVID-19
section_headers: Do COVID-19 and tuberculosis spread in the same way?
section_content: While both tuberculosis (TB) and COVID-19 spread by close contact between
people the exact mode of transmission differs, explaining some differences in
infection control measures to mitigate the two conditions.  
TB bacilli remain suspended in the air in droplet nuclei for several hours
after a TB patient coughs, sneezes, shouts, or sings, and people who inhale
them can get infected. The size of these droplet nuclei is a key factor
determining their infectiousness. Their concentration decreases with
ventilation and exposure to direct sunlight.  
COVID-19 transmission has primarily been attributed to the direct breathing of
droplets expelled by someone with COVID-19 (people may be infectious before
clinical features become apparent). Droplets produced by coughing, sneezing,
exhaling and speaking may land on objects and surfaces, and contacts can get
infected with COVID-19 by touching them and then touching their eyes, nose or
mouth . Handwashing, in addition to respiratory precautions, are thus
important in the control of COVID-19.

Reviewer feedback on this answer:
The question is about the flu and covid.  This passage is mostly about covid and mentions TB a bit.  There is not mention of the flu.
This answer is bad because it talks about the differences between tuberculosis and COVID, but the question is asking for differences between influenza and COVID, not tuberculosis.

Reviewer ratings:
Bad
Bad

Answer passage (source: WHO):
page_title: Q&A: Influenza and COVID-19 - similarities and differences
section_headers: What medical interventions are available for COVID-19 and influenza viruses?
section_content: While there are a number of therapeutics currently in clinical trials in China
and more than 20 vaccines in development for COVID-19, there are currently no
licensed vaccines or therapeutics for COVID-19. In contrast, antivirals and
vaccines available for influenza. While the influenza vaccine is not effective
against COVID-19 virus, it is highly recommended to get vaccinated each year
to prevent influenza infection.

Reviewer feedback on this answer:
This answer needs improvement because it only talks about the difference between vaccines for COVID and influenza, rather than more differences between the viruses themselves and their symptoms. There needs to be more detail as to how the viruses affect the body differently.
This really doesn't talk about the differences between the flu and covid.  The only mention of the flu is in the last sentence.

Reviewer ratings:
Could be Improved
Bad