it seems every week cocci is rearing its ugly head in our flock, and i cant get it under control we're losing on average 1 chicken per week, so far all younger birds between 10 and 18 weeks old (no older birds lost, some have shown symptoms but quickly recovered after 3 day meds) we have been treating with ESB-3 (only cocci med we can get here) its one capsuale per 1 litre water for three days, then repeat after 5 days if symptoms still showing. well we've been treating with it now for 2 months on and off as we are losing all our younger chickens. we also have a bad red mite infestation in the 2 houses which house the younger chickens which i guess isnt helping but all houses have been treated this weekend so that should be undercontrol now. i just dont know what else to try on the cocci problem. symptoms are.... chickens starts being inactive, hangs around, 'sleeps' in the day. eyes closed hunched up, blood in the poo, some have bright yellow coloured poo, others pooped pure 'red' (blood?) after a day or two the chicken loses ability to stand, is laying around, then total loss of movement in the legs shortly followed by death all chickens that have died so far have been under 18 weeks old, and it seems to be chickens all from the same side of the field (4 houses, two on each side of the field, younger chickens in 2 houses, older chickens in the other 2. what else can i try? we're cleaning the houses daily at the moment, treating ALL chickens with the meds, but it keeps coming back?