Table 1 Vulnerability risk factors among Syrian refugees in Lebanon and their impact on the basic reproductive number (R0)
From: Vulnerability of Syrian refugees in Lebanon to COVID-19: quantitative insights
| Risk factor | Consequence | Effect on R0 parameters |
|---|---|---|
| Crowded physical environment | • Increased contacts between households | • Increase in the contact rate (c) |
| • Increased contacts within households | • Increase in the contact rate (c) | |
| • Short physical distance between members of a household | • Increase in the probability of transmission (p) | |
| • Inability to isolate or quarantine | • Increase in the duration of infectiousness (D) | |
| Inadequate access to clean water | • Precludes hand/face washing and surfaces cleaning | • Increase in the probability of transmission (p) |
| Inadequate access to protective measures such as masks | • Increased spread of respiratory droplets | • Increase in the probability of transmission (p) |
| Inadequate access to health care | • Precludes diagnosis and isolation | • Increase in the duration of infectiousness (D) |
| Inadequate community awareness | • Delay to isolate or quarantine | • Increase in the duration of infectiousness (D) |