Table. Description of the 5 Simulations.
Scenarios | Description |
---|---|
Stringency of mitigation measures | |
1. Constant low level of transmission | Individuals obey social distancing strictly and have constant low contact rate from March 2020 to March 2021 |
2. Sudden decrease + gradual increase in transmission | Mitigation measures are most strict at the beginning and are gradually relaxed between March 2020 and March 2021 |
3. Decrease in nonhousehold contacts | Stay-at-home orders from late March 2020 to late June 2020 reduced contact opportunities in nonhousehold settings by 82% and increased household contacts by 10% |
Factors associated with the reemergence of RSV epidemics | |
4. Importation of external infections | Introduction of the virus from other regions may ignite RSV epidemics |
5. Decrease in the duration of protective maternal immunity | Absence of RSV epidemics leads to lack of boosting of maternal immunity |
Abbreviation: RSV, respiratory syncytial virus.