Impact of Delta Variant and Vaccination on SARS-CoV-2 Secondary Attack Rate Among Household Close Contacts

• Main Authors: Oon Tek Ng (Author), Vanessa Koh (Author), Calvin J Chiew (Author), Kalisvar Marimuthu (Author), Natascha May Thevasagayam (Author), Tze Minn Mak (Author), Joon Kiat Chua (Author), Shannen Si Hui Ong (Author), Yong Kai Lim (Author), Zannatul Ferdous (Author), Alifa Khairunnisa bte Johari (Author), Mark I-Cheng Chen (Author), Sebastian Maurer-Stroh (Author), Lin Cui (Author), Raymond Tzer Pin Lin (Author), Kelvin Bryan Tan (Author), Alex R Cook (Author), Prof. Yee-Sin Leo (Author), Prof. Vernon JM Lee (Author)
• Format: Book
• Published: Elsevier, 2021-12-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

SUMMARY: Background: Impact of the Delta variant and vaccination on SARS-CoV-2 transmission remains unclear. In Singapore, quarantine of all close contacts, including entry and exit PCR testing, provided the opportunity to determine risk of infection by the Delta variant compared to other variants,...