Internationally lost COVID-19 cases.

Area of Science:

• Epidemiology
• Global Health
• Public Health Surveillance

Background:

• The COVID-19 pandemic, originating in Wuhan, China, prompted global health organizations to implement travel restrictions.
• Despite restrictions, international COVID-19 cases increased, raising concerns about undetected transmissions and potential new epicenters.
• The study addresses the critical need to understand international COVID-19 case reporting dynamics.

Purpose of the Study:

• To analyze international COVID-19 case data from January 20th to February 18th, 2020.
• To investigate the relationship between COVID-19 case reporting and national Healthcare Access and Quality (HAQ) Index scores.
• To identify potential disparities in COVID-19 detection and reporting across countries with varying healthcare standards.

Main Methods:

• Analysis of international COVID-19 case data (January 20 - February 18, 2020).
• Categorization of cases based on travel history to China and country HAQ-Index.
• Application of Chi-square and Post-hoc tests for statistical analysis.

Main Results:

• COVID-19 cases with travel history showed a peak in each HAQ-Index cohort.
• Non-travel related COVID-19 cases continuously increased in countries with higher HAQ-Index scores.
• Countries with lower HAQ-Index scores reported a significantly lower proportion of non-travel related COVID-19 cases (p < 0.01).

Conclusions:

• Lower HAQ-Index countries may underreport or inadequately detect COVID-19 cases.
• Discrepancies in COVID-19 case reporting present a substantial challenge to pandemic containment efforts.
• The findings underscore the importance of robust global surveillance and reporting systems for infectious diseases.