# covid-19

COVID-19 DATA ANALYSIS

Arghya Das, Abhishek Dhar, Srashti Goyal, Jitendra Kethepalli

International centre for theoretical sciences,
Tata Institute of Fundamental Research,
Bangalore 560089, INDIA

Kanaya Malakar

Department of physics, Brandeis University,
Massachusetts, 02453  USA

Sriram Shastry

Physics Department, UCSC, Santa Cruz
California, 95060  USA

• This webpage contains an analysis of data of the COVID-19 pandemic for 21 different countries.
Source of data:CSSEGISandData (updated everyday at 10pm NY time)
• We display the total number of confirmed cases, the new daily cases (averaged over a week), the total number of deaths and the number of daily deaths (averaged over a week). The data is being updated on a regular basis.
• Comments and suggestions are welcome- please send them by email to abhishek.dhar@icts.res.in, or sriram@ucsc.edu
• μ - index analysis; In addition we display the exponential growth rate  µ, given as a number per day, extracted from the data using the (difference derivative version of)  µ= d logN/ dt. μ is directly related to the doubling time which is simply 0.7/µ days. Thus µ=0.1 means that the number of cases double every one week while µ=0.23 means that they double after about 3 days. An averaging of the data, over 3 previous days is used in the presentation to eliminate insignificant (short-time) noise. If we define µd(n) as the daily change of the natural logarithm of the number of total reported cases log N(n), i.e µd(n)= [log N(n) - log N(n-1)], then the reported µ(n) is defined as the weighted average µ(n)= c1 µd(n) + c2 µd(n-1)+ c3 µd(n-2), with the weight factors c1=11/18(=0.6111), c2=5/18(=0.2778) and c3=1/9 (=0.1111).

Global Trend

Data for total number of cases in 14 out of the 21 countries considered in this study. A comparison of data for new daily cases, normalized by the population, in 12 out of the 21 countries considered in this study. NATION SPECIFIC DATA

India
A statewise analysis can be found here. Indian states

A comparison of testing statistics between India and other countries. Testing statistics

....  USA
A statewise analysis can be found here. US states    BRAZIL  CHILE  COLOMBIA  FRANCE  GERMANY  IRAN  ISRAEL  ITALY  JAPAN  MEXICO  PAKISTAN  PERU  RUSSIA  SOUTH AFRICA  South Korea  Spain  SWEDEN  TURKEY  UK   