Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Jul;229(2):70-71.
doi: 10.1038/s41415-020-1934-7.

An opportunity

Affiliations

An opportunity

N Malden. Br Dent J. 2020 Jul.
No abstract available

PubMed Disclaimer

Similar articles

References

    1. Gillespie C. What's the difference between asymptomatic and presymptomatic spread of COVID-19? Explore Health 11 June 2020. Available at: https://www.health.com/condition/infectious-diseases/coronavirus/asympto... (accessed 12 July 2020).