TY - JOUR AU - Kremer, Cécile AU - Braeye, Toon AU - Proesmans, Kristiaan AU - André, Emmanuel AU - Torneri, Andrea AU - Hens, Niel T1 - Serial Intervals for SARS-CoV-2 Omicron and Delta Variants, Belgium, November 19–December 31, 2021 T2 - Emerging Infectious Disease journal PY - 2022 VL - 28 IS - 8 SP - 1699 SN - 1080-6059 AB - We investigated the serial interval for SARS-CoV-2 Omicron BA.1 and Delta variants and observed a shorter serial interval for Omicron, suggesting faster transmission. Results indicate a relationship between empirical serial interval and vaccination status for both variants. Further assessment of the causes and extent of Omicron dominance over Delta is warranted. KW - COVID-19 KW - coronavirus disease KW - SARS-CoV-2 KW - severe acute respiratory syndrome coronavirus 2 KW - viruses KW - respiratory infections KW - zoonoses KW - vaccine-preventable diseases KW - serial interval KW - variants of concern KW - Belgium DO - 10.3201/eid2808.220220 UR - https://wwwnc.cdc.gov/eid/article/28/8/22-0220_article ER - End of Reference