<qa>  What is the subject able to communicate well with?4. Subject is able to communicate well with the investigator and is available to attend all study visits, lives in proximity to the trial centre 10 km or if 10km is willing to stay in a hotel close to the trial centre during part of the study from day 5 post-infection until DT14 provided that the subject has had 2 consecutive negative 18S qPCR tests at least 24 hours apart following DT1 treatment; or until day DT23. 