 to see if they're effective in this strain. And those borders in the east of the Democratic Republic of Congo are very porous. So I suppose there's a fairly strong likelihood that Burundi, Rwanda have been similarly affected, even though they may not have identified the disease yet. Yes, exactly. And I think this is where everybody's been very realistic around. The people move across the border. That's where the roads run, the mining community. There's also trucks going backwards and forwards.