Go south, as in death? There is always that possibility. I know now mine were showing signs for 2-3 days prior. But there could not have been much of an overload in the conditions they were being kept in. I should add the kennel was clean and in the house. I'm still surprised about that...lol.
Do your chicks have a lot of room or have they been more crowded? If they've been a bit more crowded, chances are they'll have a heavier parasite load.
It's like dropping 10 tacks in a room. If the room is 10 x 10, chances are you're going to step on one or more of those tacks. If the room is 100 x 100, the chances are much slimmer. That's how I've heard it explained in regards to infectious pathogens. Coccidiosis would be very much the same. Each loaded chick will be spreading the oocysts as well.
In addition to the link Maddison provided above, here's some more information in two other links that explains some key points in a clear and concise manner. Maybe these can help with some answers.
http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex4616
http://www.merckvetmanual.com/poultry/coccidiosis/overview-of-coccidiosis-in-poultry
Do your chicks have a lot of room or have they been more crowded? If they've been a bit more crowded, chances are they'll have a heavier parasite load.
It's like dropping 10 tacks in a room. If the room is 10 x 10, chances are you're going to step on one or more of those tacks. If the room is 100 x 100, the chances are much slimmer. That's how I've heard it explained in regards to infectious pathogens. Coccidiosis would be very much the same. Each loaded chick will be spreading the oocysts as well.
In addition to the link Maddison provided above, here's some more information in two other links that explains some key points in a clear and concise manner. Maybe these can help with some answers.
http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex4616
http://www.merckvetmanual.com/poultry/coccidiosis/overview-of-coccidiosis-in-poultry

