Are there any communicable diseases that cause cough, cold, leg pain, and recurrent fever? My 3 boys, aged 2 to 13, have all been sick for the past month and a half. They can't kick this cold/cough, and the fever just keeps coming back. It gets as high as 104! They have all had 2 rounds of antibiotics, and the pediatrician acts as if they are just passing different things around. My 'mother's intuition' tells me this is different than the common cold/flu. They will be well for 4 days then here comes the fever again. My kids have had everything under the sun, and I'm quite used to them 'sharing' whatevers going around. This just seems excessive, and I'm prone to think there might be something more serious, or better yet, curable going on here. The symptoms are listed above. The leg pain is getting me. I thought it was 'growing pains', and now I'm not so sure. Please help! Does this ring any bells with anyone? What   should I do?

Summarized question: Are there any communicable diseases that cause cough, cold, leg pain, and recurrent fever?