Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Aug 10;12:13589. doi: 10.1038/s41598-022-17990-7

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

RT-PCR test-positive rate after close contact with COVID-19 cases by the time of the last vaccination. Line graphs for the RT-PCR test-positive rate after close contact with COVID-19 cases, according to the days of the last vaccination in those who completed two (a) or three (b) doses of mRNA COVID-19 vaccines are shown. The lines represent the rolling average of the test-positive rate within the nearby ± 5 days for each day relapsed from the last vaccination. The blue-filled areas above and below the line graphs represent the 95% confidence interval of the test-positive rate. COVID-19, coronavirus disease 2019; mRNA, messenger RNA; RT-PCR, reverse transcription-polymerase chain reaction.