In one study, 332 children (ages 27 days to 5-years-old) suffering from recurrent bouts of otitis media had been on repeated doses of antibiotics. They were finally given chiropractic care. After spinal adjustments the children healed quickly, without antibiotics, and experienced few repeat infections. In another study of 211 infants examined 5 days after birth who suffered from vomiting, hyperactivity and sleeplessness, chiropractic care frequently resulted in the immediate cessation of crying, muscular relaxation and sleepiness. The authors, who are medical doctors, wrote that an unhealthy spine "causes many clinical features from central motor impairment to lower resistance to infections-especially ear, nose and throat infections." They assert that all newborns should have their spines checked by chiropractors as "the success of adjustment overshadows every other type of (care)." In another case study a 4 1/2 –year-old girl with chronic ear infections, a 50% right ear hearing loss and adenoiditis received chiropractic care. "A follow-up visit to her pediatrician and ENT specialist (found) no sign of ear infection or inflammation, but her adenoids, which were the worst the ENT had ever seen, were perfectly normal and healthy…the family was told to continue chiropractic care because it had obviously worked."