求翻译：鸡球虫病是养禽业中最重要的疾病之一，每年造成数十亿美元的重大经济损失．当前，药物防治是控制鸡球虫病的主要手段，但是随着耐药虫株的普遍产生及绿色食品概念的形成，人们期望用更好的手段取代之．疫苗是一种很好的手段．鸡球虫疫苗和有关鸡球虫疫苗相关知识成为当前研究的热点。本文就鸡球虫病疫苗的类型、免疫应重视的问题及注意事项、疫苗接种的方法3方面研究做出综述。是什么意思？

Coccidiosis is one of the most important disease in the poultry industry, causing heavy economic losses of billions of dollars each year. Currently, drug prevention is the primary means of controlling coccidiosis in chicken, but with the insect-resistant strains generally produces and the formation of the concept of green food, expected with better means to replace it. Vaccines are a good tool. Chicken coccidia on chicken coccidiosis vaccines and vaccine-related knowledge into current research focus. This type of chicken coccidiosis vaccine, immunization should pay attention to problems and precautions, vaccination methods of research make a summary of the 3.