CHAPTER TWO
A SYSTEMATIC ANALYSIS OF THE EFFECTS OF VEGETATION
AREA AND POPULATION DENSITY ON COVID-19 CASES AND
DEATHS FROM 2019 TO 2021
2.1 INTRODUCTION
2.2 MATERIAL AND METHOD
In December 2021, a preliminary systematic review was undertaken using a web-based
database of Google Scholar articles. It is necessary to follow four basic stages when selecting
journal articles, which are as follows: 1) Identification; 2) Screening; 3) Eligibility; and 4)
Inclusion (included). The journal papers were chosen based on their publication dates, which
ranged from 2019 to 2021, and were written in English. COVID-19 instances, COVID-19
deaths, vegetation area, population density, and environmental factors are some of the main
terms that been employed to search the database during the search process.
2.3 RESULT AND DISCUSSIONS
2.4 RESEARCH GAPS
2.5 CONCLUSION