Student or educator? Sign up with your school email and get 6 months of Pro free.
CoChat
Sign Up
Cited by 269

The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.

Cryptic transmission of SARS-CoV-2 in Washington state

Open access
Bedford, Trevor, Greninger, Alexander L., Roychoudhury, Pavitra, Starita, Lea M., Famulare, Michael, Huang, Meei-Li, Nalla, Arun, Pepper, Gregory, Reinhardt, Adam, Xie, Hong, Shrestha, Lasata, Nguyen, Truong N., Adler, Amanda, Brandstetter, Elisabeth, Cho, Shari, Giroux, Danielle, Han, Peter D., Fay, Kairsten, Frazar, Chris D., Ilcisin, Misja, Lacombe, Kirsten, Lee, Jover, Kiavand, Anahita, Richardson, Matthew, Sibley, Thomas R., Truong, Melissa, Wolf, Caitlin R., Nickerson, Deborah A., Rieder, Mark J., Englund, Janet A., The Seattle Flu Study Investigators, Hadfield, James, Hodcroft, Emma B., Huddleston, John, Moncla, Louise H., Müller, Nicola F., Neher, Richard A., Deng, Xianding, Gu, Wei, Federman, Scot, Chiu, Charles, Duchin, Jeffrey S., Gautom, Romesh, Melly, Geoff, Hiatt, Brian, Dykema, Philip, Lindquist, Scott, Queen, Krista, Tao, Ying, Uehara, Anna, Tong, Suxiang, MacCannell, Duncan, Armstrong, Gregory L., Baird, Geoffrey S., Chu, Helen Y., Shendure, Jay, Jerome, Keith R., Chu, Helen Y., Boeckh, Michael, Englund, Janet A., Famulare, Michael, Lutz, Barry R., Nickerson, Deborah A., Rieder, Mark J., Starita, Lea M., Thompson, Matthew, Shendure, Jay, Bedford, Trevor, Adler, Amanda, Brandstetter, Elisabeth, Cho, Shari, Frazar, Chris D., Giroux, Danielle, Han, Peter D., Hadfield, James, Huang, Shichu, Jackson, Michael L., Kiavand, Anahita, Kimball, Louise E., Lacombe, Kirsten, Logue, Jennifer, Lyon, Victoria, Newman, Kira L., Richardson, Matthew, Sibley, Thomas R., Zigman Suchsland, Monica L., Truong, Melissa, Wolf, Caitlin R.·2020·Science
DOI 10.1126/science.abc0523
Open this paper in CoChat — free account

Abstract

A series of unfortunate events: The history of how severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread around the planet has been far from clear. Several narratives have been propagated by social media and, in some cases, national policies were forged in response. Now that many thousands of virus sequences are available, two studies analyzed some of the key early events in the spread of SARS-CoV-2. Bedford et al. found that the virus arrived in Washington state in late January or early February. The viral genome from the first case detected had mutations similar to those found in Chinese samples and rapidly spread and dominated subsequent undetected community transmission. The other viruses detected had origins in Europe. Worobey et al. found that early introductions into Germany and the west coast of the United States were extinguished by vigorous public health efforts, but these successes were largely unrecognized. Unfortunately, several major travel events occurred in February, including repatriations from China, with lax public health follow-up. Serial, independent introductions triggered the major outbreaks in the United States and Europe that still hold us in the grip of control measures. Science , this issue p. 571 , p. 564

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1126/science.abc0523

Cites

32 of 32 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 32 references

Cited by

See all 269

Metadata

Authors
Bedford, T., Greninger, A. L., Roychoudhury, P., Starita, L. M., Famulare, M., Huang, M.-L., Nalla, A., Pepper, G., Reinhardt, A., Xie, H., Shrestha, L., Nguyen, T. N., Adler, A., Brandstetter, E., Cho, S., Giroux, D., Han, P. D., Fay, K., Frazar, C. D., Ilcisin, M., Lacombe, K., Lee, J., Kiavand, A., Richardson, M., Sibley, T. R., Truong, M., Wolf, C. R., Nickerson, D. A., Rieder, M. J., Englund, J. A., The Seattle Flu Study Investigators, Hadfield, J., Hodcroft, E. B., Huddleston, J., Moncla, L. H., Müller, N. F., Neher, R. A., Deng, X., Gu, W., Federman, S., Chiu, C., Duchin, J. S., Gautom, R., Melly, G., Hiatt, B., Dykema, P., Lindquist, S., Queen, K., Tao, Y., Uehara, A., Tong, S., MacCannell, D., Armstrong, G. L., Baird, G. S., Chu, H. Y., Shendure, J., Jerome, K. R., Chu, H. Y., Boeckh, M., Englund, J. A., Famulare, M., Lutz, B. R., Nickerson, D. A., Rieder, M. J., Starita, L. M., Thompson, M., Shendure, J., Bedford, T., Adler, A., Brandstetter, E., Cho, S., Frazar, C. D., Giroux, D., Han, P. D., Hadfield, J., Huang, S., Jackson, M. L., Kiavand, A., Kimball, L. E., Lacombe, K., Logue, J., Lyon, V., Newman, K. L., Richardson, M., Sibley, T. R., Zigman Suchsland, M. L., Truong, M., & Wolf, C. R.
Venue
Science
Publisher
American Association for the Advancement of Science (AAAS)
Published
2020-10-30
Volume
370
Issue
6516
Pages
571-575
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
DOI
10.1126/science.abc0523
OpenAlex
W3086967467
Cited by
269
References
32
FWCI
7.12
Type
journal article
Language
en
Open access
hybrid

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Cryptic transmission of SARS-CoV-2 in Washington state. https://app.cochat.ai/papers/10.1126/science.abc0523
The paper
Bedford, T., Greninger, A. L., Roychoudhury, P., Starita, L. M., Famulare, M., Huang, M.-L., Nalla, A., Pepper, G., Reinhardt, A., Xie, H., Shrestha, L., Nguyen, T. N., Adler, A., Brandstetter, E., Cho, S., Giroux, D., Han, P. D., Fay, K., Frazar, C. D., . . . Wolf, C. R. (2020). Cryptic transmission of SARS-CoV-2 in Washington state. Science. https://doi.org/10.1126/science.abc0523

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.