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[quote=Anonymous]Coronavirus Symptoms, Incubation and other important facts and data in one place: (COVID-19)

You can find all the data posted below on the source page that is beautifully organized as the formatting got chopped in pasting below, the original page is beautifully formatted and easy to read, with tables and links to all sources, the page compiles newest data from all sources available and update it daily or as available. I think that many here often ask questions that nobody has answer to, here many of those questions can be answered in a clear and fact based manner. Enjoy.
Here is source link:
https://www.worldometers.info/coronavirus/

[b]The median time observed:
from first symptom to ? Dyspnea (Shortness of breath) = 5.0 days
from first symptom to ? Hospital admission = 7.0 days
from first symptom to ? ARDS (Acute Respiratory Distress Syndrome) = 8.0 day[/b]s (when occurring)

SHORT LIST:
Last updated: February 18,  
Reported illnesses have ranged from people with mild symptoms to people being severely ill and dying. 
Symptoms can include: 
[b]Fever 
Cough
Shortness of breath [/b]

[b]Typical Symptoms[/b]
COVID-19 typically causes flu-like symptoms including a fever and cough. 
In some patients - particularly the elderly and others with other chronic health conditions - these symptoms can develop into pneumonia, with chest tightness, chest pain, and shortness of breath.

[b]It seems to start with a fever, followed by a dry cough.[/b]
[b]After a week, it can lead to shortness of breath, with about 20% of patients requiring hospital treatment.
[/b]

[b]Yes, runny nose and sore throat in about 5% cases![/b]

Notably, the COVID-19 infection rarel[b]y seems to cause a runny nose, sneezing, or sore throat (these symptoms have been observed in only about 5% of patients).[/b] Sore throat, sneezing, and stuffy nose are most often signs of a cold

80% of cases are mild 
Based on all 72,314 cases of COVID-19 confirmed, suspected, and asymptomatic cases in China as of February 11, a paper by the Chinese CCDC released on February 17 and published in the Chinese Journal of Epidemiology has found that:
80.9% of infections are mild (with flu-like symptoms) and can recover at home.
13.8% are severe, developing severe diseases including pneumonia and shortness of breath.
4.7% as critical and can include: respiratory failure, septic shock, and multi-organ failure.
in about 2% of reported cases the virus is fatal.
Risk of death increases the older you are.
Relatively few cases are seen among children.

[b]80% of cases are mild [/b]

Based on all 72,314 cases of COVID-19 confirmed, suspected, and asymptomatic cases in China as of February 11, a paper by the Chinese CCDC released on February 17 and published in the Chinese Journal of Epidemiology has found that:
80.9% of infections are mild (with flu-like symptoms) and can recover at home.
13.8% are severe, developing severe diseases including pneumonia and shortness of breath.
4.7% as critical and can include: respiratory failure, septic shock, and multi-organ failure.
in about 2% of reported cases the virus is fatal.
Risk of death increases the older you are.
Relatively few cases are seen among children.

Examples of possible development of symptoms (from actual cases) 
A man in his 40s in Japan:
Day #1: malaise and muscle pain
later diagnosed with pneumonia
A man in his 60s in Japan:
Day #1: initial symptoms of low-grade fever and sore throat.
A man in his 40s in Japan:
Day #1: chills, sweating and malaise
Day #4: fever, muscle pain and cough
A woman in her 70s, in Japan:
Day #1: 38° fever for a few minutes
Day #2-3: went on a bus tour
Day #5: visited a medical institution
Day #6: showed symptoms of pneumonia. 
A woman in her 40s, in Japan:
Day #1: low-grade fever 
Day #2: 38° fever
Day #6: being treated at home.
A man in his 60s, in Japan: 
Day #1: Cold
Day #6: Fever of 39° C. (102.2 F) 
Day #8: Pneumonia
Another patient, in China with a history of type 2 diabetes and hypertension:
Jan. 22: Fever and cough
Feb. 5: Died 
First death in the Philippines (a 44-year-old Chinese thought to have had other pre-existing health conditions):
Jan. 25: Fever, cough, and sore throat (hospitalized) 
Developed severe pneumonia
Feb. 2: Died

Symptoms observed in hospitalized patients with COVID-19
Below we list the symptoms, with percentages representing the proportion of patients displaying that symptom, as observed in hospitalized patients tested and identified as having laboratory-confirmed COVID-19 infection. These findings refer to hospitalized patients, therefore generally representing serious or critical cases. The majority of cases of COVID-19 (about 80%) is mild.
Findings from the Wang et al study published on JAMA and based on 138 hospitalized patient

Common symptoms included: 
(Wang et al study) [2]

Fever
98.6%
Fatigue
69.6%
Dry cough
59.4%

The median time observed:
from first symptom to ? Dyspnea (Shortness of breath) = 5.0 days
from first symptom to ? Hospital admission = 7.0 days
from first symptom to ? ARDS (Acute Respiratory Distress Syndrome) = 8.0 days (when occurring)

Full list of symptoms from the Wang study:
https://cdn.jamanetwork.com/ama/content_public/journal/jama/0/joi200019t1.png?Expires=2147483647&Signature=4jEMKsjXWq9Rcb00mqybI%7Em1SBaHcTctOrnX0G3mfcYgq3CCb92okz615oRaUjY%7EkheCb9uOnG9TGPeHAo5KkM9%7EiI1529XMOvSn8gzSuuQNmrxuEdoeTewvBGKO-GdPaAzDxP7pfV2YobrsO5n0cursAXfputThZDoiJr3AsoB1OjnoFEz-ToR9WCSZ7p-3tf1HaMDdl-Cbd2kex6TXq13FaQ4g4-XavGt5cYr14dehLgbYsp9406A5JT6UPzquyM9CZqQe-wgXknTmtCeo2xSHk8L3EqZ31dqvfkk1v3CXfVvLzHDVjvb6whzGF%7EUkr6qyZJDVSuX0qeNyB31dGQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA

[img]https://cdn.jamanetwork.com/ama/content_public/journal/jama/0/joi200019t1.png?Expires=2147483647&Signature=4jEMKsjXWq9Rcb00mqybI%7Em1SBaHcTctOrnX0G3mfcYgq3CCb92okz615oRaUjY%7EkheCb9uOnG9TGPeHAo5KkM9%7EiI1529XMOvSn8gzSuuQNmrxuEdoeTewvBGKO-GdPaAzDxP7pfV2YobrsO5n0cursAXfputThZDoiJr3AsoB1OjnoFEz-ToR9WCSZ7p-3tf1HaMDdl-Cbd2kex6TXq13FaQ4g4-XavGt5cYr14dehLgbYsp9406A5JT6UPzquyM9CZqQe-wgXknTmtCeo2xSHk8L3EqZ31dqvfkk1v3CXfVvLzHDVjvb6whzGF%7EUkr6qyZJDVSuX0qeNyB31dGQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA[/img]

Findings from the Huang et al study published on The Lancet and based on 41 hospitalized patients [3]
COMMON SYMPTOMS 
AT ONSET OF ILLNESS 
(Huang et al study) [3]

Fever
98%
Cough
76%
Myalgia (muscle pain) 
or Fatigue
44%
LESS COMMON SYMPTOMS:

Sputum production 
(coughing up material)
28%
Headache
8%
Haemoptysis
(coughing up blood) 
5%
Diarrhea
3%
Findings from the Chen et al study published on The Lancet and based on 99 hospitalized patients [4]
Signs and symptoms at admission
(Chen et al study) [4]

Fever
83%
Cough
82%
Shortness of breath
31%
Muscle ache
11%
Confusion
9%
Headache
8%
Sore throat
5%
Rhinorrhoea (runny nose) 
4%
Chest pain
2%
Diarrhea
2%
Nausea and vomiting
1%
More than one sign 
or symptom
90%

Fever, cough, 
and shortness 
of breath
15%

[b]Age, Sex, Existing Conditions of COVID-19 Cases and Deaths [/b]

Last updated: February 23, 22:35 GMT 
Age of Coronavirus Deaths
Based on all 72,314 cases of COVID-19 confirmed, suspected, and asymptomatic cases in China as of February 11, a paper by the Chinese CCDC released on February 17 and published in the Chinese Journal of Epidemiology [1] has found that the risk of death increases the older you are, as follows:
COVID-19 Fatality Rate by AGE:
*Death Rate = (number of deaths / number of cases) = probability of dying if infected by the virus (%). This probability differs depending on the age group. The percentage shown below does NOT represent in any way the share of deaths by age group. Rather, it represents, for a person in a given age group, the risk of dying if infected with COVID-19. 
AGE
DEATH RATE* 
80+ years old 
14.8%
70-79 years old 
8.0%
60-69 years old 
3.6%
50-59 years old 
1.3%
40-49 years old 
0.4%
30-39 years old 
0.2%
20-29 years old 
0.2%
10-19 years old 
0.2%
0-9 years old 
no fatalities 
*Death Rate = (number of deaths / number of cases) = probability of dying if infected by the virus (%).
In general, relatively few cases are seen among children.
Sex ratio 
COVID-19 Fatality Rate by SEX:
*Death Rate = (number of deaths / number of cases) = probability of dying if infected by the virus (%). This probability differs depending on sex. When reading these numbers, it must be taken into account that smoking in China is much more prevalent among males. Smoking increases the risks of respiratory complications.

[b]SEX
DEATH RATE * [/b]
Male
2.8%
Female
1.7%
*Death Rate = (number of deaths / number of cases) = probability of dying if infected by the virus (%).
Pre-existing medical conditions (comorbidities)
Patients who reported no pre-existing ("comorbid") medical conditions had a case fatality rate of 0.9%. Pre-existing illnesses that put patients at higher risk of dying from a COVID-19 infection are:
COVID-19 Fatality Rate by COMORBIDITY:
*Death Rate = (number of deaths / number of cases) = probability of dying if infected by the virus (%). This probability differs depending on pre-existing condition. The percentage shown below does NOT represent in any way the share of deaths by pre-existing condition. Rather, it represents, for a patient with a given pre-existing condition, the risk of dying if infected by COVID-19.

[b]PRE-EXISTING CONDITION
DEATH RATE* [/b]
Cardiovascular disease
10.5%
Diabetes
7.3%
Chronic respiratory disease
6.3%
Hypertension
6.0%
Cancer
5.6%
no pre-existing conditions 
0.9%
*Death Rate = (number of deaths / number of cases) = probability of dying if infected by the virus (%).

Information on Coronavirus Symptoms from Government Health Officials 
Canada Public Health Agency
The Canadian PHAC section dedicated to the 2019 novel coronavirus states that:
You may have little to no symptoms.
You may not know you have symptoms of COVID-19 because they are similar to a cold or flu.
Symptoms may take up to 14 days to appear after exposure to the virus. This is the longest known infectious period for this virus.
Symptoms have included:
fever
cough
difficulty breathing
pneumonia in both lungs
In severe cases, infection can lead to death.
UK Government and NHS 
The UK National Health Service (NHS) section dedicated to Coronavirus (2019-nCoV) lists the following as the main symptoms of coronavirus:
a cough
a high temperature
shortness of breath

The GOV.UK novel coronavirus guidance for the public page says:
Typical symptoms of coronavirus include fever and a cough that may progress to a severe pneumonia causing shortness of breath and breathing difficulties.

The GOV.UK clinical guidance on Novel coronavirus (2019-nCoV): epidemiology, virology and clinical features notes that:
Fever, cough or chest tightness, and dyspnoea are the main symptoms reported. While most cases report a mild illness, severe are also being reported, some of whom require intensive care.
Australian Government
The Australian Government Department of Health informs that symptoms can range from mild illness to pneumonia, adding that some people will recover easily, while others may get very sick very quickly. According to their list of novel coronavirus symptoms, people may experience:
fever
flu-like symptoms such as coughing, sore throat and fatigue
shortness of breath

[b]How contagious is the Wuhan Coronavirus? (Ro) [/b]

The attack rate or transmissibility (how rapidly the disease spreads) of a virus is indicated by its reproductive number (Ro, pronounced R-nought or r-zero), which represents the average number of people to which a single infected person will transmit the virus.
WHO's estimated (on Jan. 23) Ro to be between 1.4 and 2.5. [13]
Other studies have estimated a Ro between 3.6 and 4.0, and between 2.24 to 3.58. [23]. 
Preliminary studies had estimated Ro to be between 1.5 and 3.5. [5][6][7]
An outbreak with a reproductive number of below 1 will gradually disappear.
For comparison, the Ro for the common flu is 1.3 and for SARS it was 2.0.
Fatality Rate (case fatality ratio or CFR) of the Wuhan Coronavirus
See full details: Wuhan Coronavirus Fatality Rate
The novel coronavirus' case fatality rate has been estimated at around 2%, in the WHO press conference held on January 29, 2020 [16] . However, it noted that, without knowing how many were infected, it was too early to be able to put a percentage on the mortality rate figure.
A prior estimate [9] had put that number at 3%. 
Fatality rate can change as a virus can mutate, according to epidemiologists.
For comparison, the case fatality rate for SARS was 10%, and for MERS 34%.
Incubation Period (how long it takes for symptoms to appear) 
See full details: COVID-19 Coronavirus Incubation Period 
Symptoms of the novel coronavirus (2019-nCoV) may appear in as few as 2 days or as long as 14 (estimated ranges vary from 2-10 days, 2-14 days, and 10-14 days, see details), during which the virus is contagious but the patient does not display any symptom (asymptomatic transmission).

[b]
Age and conditions of Coronavirus cases [/b]
 See latest findings: Age, Sex, Demographics of COVID-19 Cases and Deaths 
According to China's National Health Commission (NHC), about 80% of those who died were over the age of 60 and 75% of them had pre-existing health conditions such as cardiovascular diseases and diabetes.[24]
According to the WHO Situation Report no. 7 issued on Jan. 27: 
The median age of cases detected outside of China is 45 years, ranging from 2 to 74 years.
71% of cases were male.
A study of 138 hospitalized patients with NCIP found that the median age was 56 years (interquartile range, 42-68; range, 22-92 years) and 75 (54.3%) were men.[25] 
The WHO, in its Myth busters FAQs, addresses the question: "Does the new coronavirus affect older people, or are younger people also susceptible?" by answering that: 
People of all ages can be infected by the new coronavirus (2019-nCoV). 
Older people, and people with pre-existing medical conditions (such as asthma, diabetes, heart disease) appear to be more vulnerable to becoming severely ill with the virus.
Patient who died in the Philippines was a 44-year old male
The patient who died in the Philippines on February 2, in what was the first death occurring outside of China, was a 44-year-old Chinese man from Wuhan who was admitted on Jan. 25 after experiencing fever, cough, and sore throat, before developing severe pneumonia. In the last few days, “the patient was stable and showed signs of improvement, however, the condition of the patient deteriorated within his last 24 hours resulting in his demise." according to the Philippine Department of Health. 
Serious Cases of 30 year old patients in France 
As of Jan. 29, according to French authorities, the conditions of the two earliest Paris cases had worsened and the patients were being treated in intensive care, according to French authorities. The patients have been described as a young couple aged 30 and 31 years old, both Chinese citizens from Wuhan who were asymptomatic when they arrived in Paris on January 18 [19].
Age and Sex of the first deaths as reported by the China National Health Commission (NHC) 
The NHC reported the details of the first 17 deaths up to 24 pm on January 22, 2020. The deaths included 13 males and 4 females. The median age of the deaths was 75 (range 48-89) years.[21]

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