If you've had kids, you've probably already gone through plenty of vaccine guilt, is the vaccine doing more harm than good? Should you vaccinate or shouldn't you? etc. Well we don't have kids, but believe me, the livestock vaccine guilt is just as bad (for me anyway). For cattle there are two main vaccinations, 5-in-1 and 7-in-1 (more here ). The first vaccinates against 5 different Clostridium bacteria that cause a range of diseases in cattle. The second is the same, but also includes vaccinations for 2 Leptosporidium bacteria, which are harmful to both cattle and humans. The second one is more than twice the price of the first one. In organic farming you are allowed to vaccinate against diseases which are common in your area. Everyone we know uses 7-in-one on all their calves, but is it really necessary? Its impossible to find out, most of the information comes from the vaccination manufacturers, and you can bet how much I trust wh...