Control of the 2018–2019 dengue fever outbreak in Oman: A country previously without local transmission

Seif S. Al-Abri*, Padmamohan J. Kurup, Abdulla Al Manji, Hanan Al Kindi, Adel Al Wahaibi, Amina Al Jardani, Osama Ahmed Mahmoud, Lamia Al Balushi, Bader Al Rawahi, Fatma Al Fahdi, Huda Al Siyabi, Zainab Al Balushi, Samira Al Mahrooqi, Asim Al Manji, Abdulla Al Sharji, Khalid Al Harthi, Bader Al Abri, Amira Al-Raidan, Zakiya Al Bahri, Said Al-MukhainiMohammed Amin, A. R. Prasanna, Eskild Petersen, Fatma Al Ajmi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Background: In December 2018, routine surveillance identified an autochthonous outbreak of dengue fever in Muscat Governorate, Oman, a region previously free of dengue fever. Methods: Routine surveillance confirmed locally acquired cases in the second week of December, leading to a rapid public health response including case management guidance and epidemiological investigations. The main activity was the vector survey using systematic sampling to assess extent of previously unreported Aedes aegypti presence followed by a campaign aimed to eliminate breeding sites of A. aegypti”. Results: During a 5-month period, 343 suspected cases were reported from Muscat Governorate with 122 from the outbreak affected area. Out of 207 probable cases eligible for laboratory testing as per guidelines issued, 59 cases were confirmed. The vector elimination campaign started on January 8, 2019 after a media advocacy using television and social media and concluded on January 23. By the end of campaign, the case load had decreased significantly in the affected area with no reports of locally acquired cases from adjoining areas of Muscat Governorate, indicating no further spread. Conclusions: Rapid notification and early community-wide, extensive vector control activities effectively contained the autochthonous dengue fever virus outbreak.

Original languageEnglish
Pages (from-to)97-103
Number of pages7
JournalInternational Journal of Infectious Diseases
Volume90
DOIs
Publication statusPublished - Jan 2020
Externally publishedYes

Keywords

  • Aedes aegypti
  • Autochthonous outbreak
  • Dengue fever
  • Disease surveillance
  • Oman
  • Vector-borne illness

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases

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