| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T275 |
0-311 |
Sentence |
denotes |
Our analysis underscores the reality that respiratory viruses are difficult to detect by symptom and risk screening programs, particularly if a substantial fraction of infected people show mild or indistinct symptoms, if incubation periods are long, and if transmission is possible before the onset of symptoms. |
| T276 |
312-502 |
Sentence |
denotes |
Quantitative estimates of screening effectiveness for COVID-19 will improve as more is learned about this recently-emerged virus, and will vary with the precise design of screening programs. |
| T277 |
503-768 |
Sentence |
denotes |
However, we present a robust qualitative finding: in any situation where there is widespread epidemic transmission in source populations from which travellers are drawn, travel screening programs can slow (marginally) but not stop the importation of infected cases. |
| T278 |
769-848 |
Sentence |
denotes |
Screening programs implemented in other settings will face the same challenges. |
| T279 |
849-1034 |
Sentence |
denotes |
By decomposing the factors leading to success or failure of screening efforts, our work supports decision-making about program design, and highlights key questions for further research. |
| T280 |
1035-1292 |
Sentence |
denotes |
We hope that these insights may help to mitigate the global impacts of COVID-19 by guiding effective decision-making in both high- and low-resource countries, and may contribute to prospective improvements in screening policy for future emerging infections. |
