8
M. Fatewar and Vaishali
Fig. 1.5 Region-wise new death per week in the world. Source Authors, data from [35]
of deaths per week for the initial 15 weeks in the world but, after that, managed to
control the situation in the latter weeks (Fig. 1.5). Additionally, lesser number of
deaths are recorded in EMRO, SEARO, AFRO, and WPRO due to less number of
confirmed COVID-19 cases as compared to AMRO and EURO.
Presently, the world neither has any vaccine to cure SARS-CoV-2 nor validated
treatment for COVID-19 [40]. Therefore, WHO has suggested to quarantine (or home
quarantine) the patient for 14 days or 2 weeks [36]. The positive results of 2 weeks
quarantine period are clearly visible in the case of EURO.
The number of fatalities due to COVID-19 had decreased significantly in European
Region during the 14th week, i.e. just 2 weeks after the region had also been able
to reduce the number of COVID-19 cases per week. The same trend was visible till
the 27th week (17 July 2020). However, the American Region was able to control
the exponential increase in the new number of registered COVID-19 cases into the
linear one (more or less) from the 13th week onwards. The positive impacts of the
change in graph were also visible in the number of new deaths during the 15th week
and thereafter (i.e. just after 2 weeks). Thus, the impact on the control of COVID-19
spread is visible after a period of 2 consecutive weeks, which results in the reduction
of fatality cases.
In the world, the United States of America (USA) is the most affected country due
to COVID-19. The share of confirmed COVID-19 cases of USA in the world is more
than one-fourth (25.50%) with 3.4 million cases followed by Brazil and India with
1.9 million and 1.0 million, respectively, till 17 July 2020. Surprisingly, the top 20
worst affected countries constitute 81.70% of the world’s total confirmed COVID-19
cases (Table 1.2).
The impact of the pandemic is more in the high population density areas as
compared to the low population density areas as observed in metropolis. As a result
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