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The current reproduction number of COVID-19 in Saudi Arabia: is the disease controlled?
Alkahtani, Theeb Ayedh; Alakeel, Abdullah; Alakeel, Reem Abdullah; Khorshid, Faten Abdulrahman; Alshammari, Hisham Hamoud; Alguwaihes, Abdullah M; Almohideb, Mohammad; Ali, Eman Merghani; Bin-Jumah, May; Abdel-Daim, Mohamed M; Jammah, Anwar Ali.
  • Alkahtani TA; Waraqa publishing co., Al Malqa, Riyadh, 13524, Saudi Arabia. Theeb@tap.sa.
  • Alakeel A; Department of Dermatology, College of Medicine, King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia.
  • Alakeel RA; Family Medicine Department, Prince Sultan Military Medical City, Riyadh, Saudi Arabia.
  • Khorshid FA; Cell Engineering and Cell Biology Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
  • Alshammari HH; National Guard Health Affairs, Dammam, Saudi Arabia.
  • Alguwaihes AM; Department of Medicine, King Saud University, Riyadh, Saudi Arabia.
  • Almohideb M; College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.
  • Ali EM; Clinical Pharmacy Department, Jazan University, Jazan, Saudi Arabia.
  • Bin-Jumah M; Biology Department, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
  • Abdel-Daim MM; Department of Zoology, Science College, King Saud University, Riyadh, 11451, Saudi Arabia. abdeldaim.m@vet.suez.edu.eg.
  • Jammah AA; Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt. abdeldaim.m@vet.suez.edu.eg.
Environ Sci Pollut Res Int ; 28(33): 44812-44817, 2021 Sep.
Article in English | MEDLINE | ID: covidwho-1303355
ABSTRACT
The infectiousness of COVID-19 is high among the susceptible population, making the calculation of the reproduction number (R) an essential step to implement preventive measures. We aim to estimate COVID-19 transmission to determine if the disease is successfully controlled or extra measured should be adopted to attain this goal. The daily incidence data of COVID-19 in Saudi Arabia from March 2nd, 2020, to April 4th, 2021, were obtained from the continuously updated Saudi Ministry of Health COVID-19 repository. To get accurate estimation of the situation over the last 4 months (from December 1st, 2020, to April 4th, 2021), we calculated the weekly (every 7 days) R starting from March 2nd, 2020, and till the last week of the available data. The calculated values of R were represented as median, first quantile (Q1), and third quantile (Q3). As early as the first week of December 2020, the median R was 0.81 (0.80-0.83) which means that each existing infected case would transmit infection to only one person. This was followed by fluctuations over the next few weeks around R value of 1, reaching its highest level of 1.45 (1.42-1.47) between December 31st, 2020, and January 6th, 2021. This was followed by a relatively steady decline over the following weeks, with some till mid-March where the R values started to slightly rise again. Social distancing, protective precautions, avoiding abuse of the partial lifting, expanding the screening process, and other Saudi measures sound to be successful and should be replicated in similar communities. This measure should be continued till the vaccination process is completed, to reduce the number of contacts and to avoid uncontrolled transmission of the disease.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Topics: Vaccines Limits: Humans Country/Region as subject: Asia Language: English Journal: Environ Sci Pollut Res Int Journal subject: Environmental Health / Toxicology Year: 2021 Document Type: Article Affiliation country: S11356-021-14217-6

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Topics: Vaccines Limits: Humans Country/Region as subject: Asia Language: English Journal: Environ Sci Pollut Res Int Journal subject: Environmental Health / Toxicology Year: 2021 Document Type: Article Affiliation country: S11356-021-14217-6