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

letter

. 2020 Sep 30;43(1):e45–e47. doi: 10.1111/ijlh.13355

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

© 2020 John Wiley & Sons Ltd

This article is being made freely available through PubMed Central as part of the COVID-19 public health emergency response. It can be used for unrestricted research re-use and analysis in any form or by any means with acknowledgement of the original source, for the duration of the public health emergency.

PMC Copyright notice

A, Relative frequency, expressed as a percentage, for blood groups A, B, AB and O, separated into women who were COVID‐19 positive (n = 44) and COVID‐19 negative (n = 185) in Leicester. B, Relative frequency, expressed as a percentage, for blood groups A, B AB and O, separated into women who were COVID‐19 positive (n = 42) and COVID‐19 negative (n = 84) in Birmingham. C, Relative frequency, expressed as a percentage, for blood groups A, B, AB and O (combined Leicester and Birmingham) separated into women who were COVID‐19 positive (n = 86) and COVID‐19 negative (n = 269)