New data suggest that casual contact at social settings accounts for much TB transmission. The CONTEXT (Casual Contact and Migration in XDR-TB) study, conducted in KwaZulu-Natal, South Africa, found that close contact explained only 9% of TB transmission links, while casual contact accounted for 49%. The findings were presented at CROI 2025. These findings come in the context of other research that suggest TB could be transmitted through breathing, and growing evidence that people with asymptomatic TB can transmit the infection.
Read the full news story at Spotlight.
For more TB updates, check out the TB CAB Weekly Newsletter (Issue #12, 7 April 2025).
The newsletter is brought to you by the Global TB Community Advisory Board (TB CAB) with the support of Treatment Action Group (TAG) and EATG. Subscribe to the newsletter here.
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