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

. 2024 Mar 7;12(4):e02181-23. doi: 10.1128/spectrum.02181-23

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

Copyright © 2024 Tapia et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license.

PMC Copyright notice

Fig 6 — Serological protection of humans of different ages against the Chilean swine IAVs. (A) Influenza A strains that circulated in human populations since 1918. H1N1: 1918–1957 and 1977–2009; H2N2: 1957–1968; H3N2: 1968–to date: A(H1N1)pdm09: 2009–to date. (B) 237 human sera collected from 2009 to 2015 were evaluated against the Chilean swine viruses by hemagglutination inhibition assay. Serum titers against the A(H1N1)pdm09, H3N2, ChH1N2A, and ChH1N2B swine viruses are grouped and shown according to individual’s date of birth.