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

. 2021 Dec 19;13(12):2545. doi: 10.3390/v13122545

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

© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Lungs of the fetus had normal histological structure of bronchi (br), pulmonary arteries (pa), and alveoli (al); only a slight increase in small lymphocyte infiltrate (arrow) in the interstitium was noted. Small groups or individual alveolar epithelial cells (arrowhead) and a few individual endothelial cells (open arrow) showed immunohistochemical positivity of SARS-CoV-2 nucleocapsid protein (Nc). Scattered endothelial cells were positive for the presence of SARS-CoV-2 RNA by in situ hybridization (ISH; double arrow). HE, 200×; Nc, ISH Nc, 600×.