Chronology of Findings
Because of the volume of publications now coming out on COVID-19 - this list makes no attempt to be exhaustive. More articles can be found by checking out some of the links on our External Resources page. If you notice something missing, click the contribute button at the bottom of this page and let us know.
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May 7, 2020
Analysis of deaths from 17 million NHS patients showed that males, those with existing conditions, and from asian or black ethnicities are more vulnerable to COVID-19.
April 29, 2020
April 16, 2020
A sample of 2,653 cases from Italy showed a mean age of 63.2 and a median time from symptom onset to diagnosis of 4 days. 40.5% were hospitalised and of those 37.4% had a comorbidity. 8.1% of cases died and for case that had up to 4 weeks of follow up this was higher. Comorbidities had a stronger association with mortality than with hospitalisation.
April 10, 2020
In a sample of 168 patients who died in China. The media age was 70. 95.8% were older than 50 years. 74.4% of patients had at least 1 comorbidity.
April 8, 2020
From a sample of 365 children tested in Madrid, 41 were found positive. 60% were hospitalised. 9.7% admired to ICU. Only 1 child had a previous condition. No patients died.
April 7, 2020
Small study of 34 patients analyses various bio-markers and hints at impacts COVID-19 may have on additional organs such as the lever and heart. Analysis showed many biomarkers had not returned back to normal levels in those returning home.
April 6, 2020
March 27, 2020
March 16, 2020
March 16, 2020
February 28, 2020
WHO Report comes out with their initial epidemiological findings. Median age 51 years. R0 estimated at 2-2.5. Only 2.4% of cases below 18 years of age. Symptoms are said to be Fever and Cough 87.9% and 67.7% of cases. Cases becomes symptomatic 5-6 days from infection. Approximately 80% have a mild disease, 13.8% severe and 6.1% critical. Whilst asymptomatic cases were reported the majority then went on to develop disease. True asymptomatic cases appears rare. Those above 60 years old and with comorbidities at risk. Fatality rate was 3.8% but varies by location. 5.8% in Wuhan and 0.7% in other parts of China. Mortality varied with age. 80 years 21.9%. Median time nationally from symptom onset to case confirmation came down from 12 days to 3 days by early Feb.
February 24, 2020
Looking at those who became critically ill, average wage was 59.7, 61.5% had died at 28 days. The average time from ICU admission to death was 7 days. Those who died were older - average age 64.9 years. 81% developed ARDS and 94% required ventilation. Most patients had organ function damage.
January 30, 2020
Virus genome shows dissimilarity from SARS-CoV and closest relationship to two Betacoronavirus found in bats back in 2018. Showed similar receptor bindings that contributed to making SARS-CoV dangerous.
49% of patients examined had a history of exposure to the Huanan seafood market. The average age was 55.5 years. 51% had chronic diseases. Symptoms showed fever and cough in 83% and 82% of cases. 75% showed pneumonia in both lungs. 17% developed ARDS. 11% patients died of multiple organ failure.
January 24, 2020
By Jan 2nd, 41 patients had been identified with COVID-19. 73% were men. 32% had underlying diseases. Median age was 49. 66% had been exposed to Huanan Seafood Market. Fever and cough showed up in 98% and 76% of cases respectively. 100% got pneumonia. 32% were admitted to ICU and 15% died.
A family of 6 were found to have contracted COVID-19 between Dec 29 - Jan 4 and demonstrated person-to-person transmission. Throat swabs were negative but RT-PCR testing showed an unknown virus confirmed to be COVID-19. They showed symptoms 3-6 days after exposure.