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

. 2017 Aug 24;12(8):e0183846. doi: 10.1371/journal.pone.0183846

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

© 2017 Chiacchio et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

PMC Copyright notice

Fig 2 — IFNγ-response to different Mtb-antigens was evaluated by short-term stimulation of whole blood in Mtb-infected patients with or without HIV infection. IFNγ from day-1 supernatants were evaluated by commercial ELISA in response to HBHA (A), QFT-IT antigen (B) and Mitogen (C). The square represents LTBI group, the triangle with the bottom tip represents HIV-LTBI group, the dot represents active TB group and the triangle with the top tip represents HIV-TB group. The data are shown after the subtraction of the results obtained in the unstimulated samples. Horizontal lines indicate the median of IFNγ production. Dotted lines indicate the cut-off for either QFT-IT or Mitogen as indicated by the suppliers and for HBHA antigen as for previously shown results [24;25]. Footnotes: HIV: human immunodeficiency virus; TB: tuberculosis; LTBI: latent TB infection; HBHA: heparin-binding haemagglutinin; QFT-IT: QuantiFERON-TB Gold (QFT^®) in tube; IFN: interferon; IU: International Unit.