Incidence of COVID-19 among returning travelers in quarantine facilities: A longitudinal study and lessons learned

Travel Med Infect Dis. 2020 Nov-Dec:38:101901. doi: 10.1016/j.tmaid.2020.101901. Epub 2020 Oct 10.

Abstract

Introduction: The emergence of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) had resulted in an unpresented global pandemic. In the initial events, the Kingdom of Saudi Arabia implemented mandatory quarantine of returning travelers in order to contain COVID-19 cases.

Materials and methods: This is a longitudinal study of the arriving travelers to Quarantine facilities and the prevalence of positive SARS-CoV-2 as detected by RT-PCR.

Results: During the study period, there was a total of 1928 returning travelers with 1273 (66%) males. The age range was 28 days-69 years. Of all the travelers, 23 (1.2%) tested positive for SARS-CoV-2. Of the first swab, 14/1928 (0.7%) tested positive. The positivity rate was 0.63% and 0.92% among males and females, respectively (P = 0.57). The second swab was positive in 9 (0.5%) of the other 1914 who were initially negative with a positivity rate of 0.39% and 0.62% among males and females, respectively (P = 0.49). There was no statistical difference in the positivity rates between first and second swab (P = 0.4). Of all travelers, 40 (n = 26, 1.3%) were admitted from the quarantine facility to the hospital due to COVID-19 related positive results or development of symptoms such as fever, cough, and respiratory symptoms; and 14 (0.7%) were admitted due to non-COVID-19 related illness.

Conclusion: This study showed the efforts put for facility quarantine and that such activity yielded a lower incidence of positive cases. There was a need to have a backup healthcare facility to accommodate those developing a medical need for evaluation and admission for non-COVID-19 related illnesses.

Keywords: COVID-19; Quarantine; SARS-CoV-2; Travelers.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • COVID-19 / epidemiology*
  • Child
  • Child, Preschool
  • Female
  • Humans
  • Incidence
  • Infant
  • Infant, Newborn
  • Longitudinal Studies
  • Male
  • Middle Aged
  • Quarantine*
  • SARS-CoV-2*
  • Saudi Arabia / epidemiology
  • Travel*
  • Young Adult