Control of disease attributable to Haemophilus influenzae type b and the national immunization program

A challenge to appropriate antibiotic use in children with respiratory infections: a 5-year single-institution experience

BACKGROUND

We have studied the rate of emergence of antibiotic-resistant Streptococcus pneumoniae (S. pneumoniae) and Haemophilus influenzae (H. influenzae) and the subsequent antibiotic use in host patients of those isolates at the Department of Pediatrics, Soma General Hospital, Fukushima. Moreover, we carried out several studies investigating the risks and benefits of antibiotic-free treatment for children with respiratory infections. In this report, we summarize our research and suggest better treatment options for pediatric patients with respiratory infections.

METHODS

We investigated the necessity of antibiotic use in the treatment of pediatric inpatients with respiratory syncytial virus (RSV) infection, and tested our hypothesis that antibiotic-free treatment for common cold will reduce the number of resistant S. pneumoniae strains in the pediatric nasopharynx. Therefore, we restricted prescribing antibiotics for pediatric patients with respiratory infections. The rates of resistant S. pneumoniae and H. influenzae and the medication history of the host patients before and after the intervention were compared.

RESULTS

We found that most of the RSV-infected patients recovered without antibiotic treatment, and that the antibiotic-free treatment inhibited the emergence of antibiotic-resistant strains. The rate of penicillin-resistant S. pneumoniae decreased but the rate of ampicillin-resistant H. influenzae did not change significantly during the study.

CONCLUSION

We concluded that patients with respiratory infections can be treated without antibiotics, under careful examination and observation. Continued monitoring of such new interventions as well as recommending their use to other caregivers and physicians will help inhibit the spread of resistant strains.

[Skin and soft tissue infections caused by Haemophilus influenzae type b over a 30 year period]

INTRODUCTION

The skin and soft tissue infections caused by Haemophilus influenzae type b (Hib) are usually mild but can be potentially serious due to the high probability of bacteremia. Prompt instauration of empiric intravenous antibiotic therapy according to the localization and characteristics of the lesion is mandatory to prevent severe complications.

PATIENTS AND METHODS

Of 257 children admitted to the Children's Hospital of La Fe due to invasive Haemophilus influenzae type b disease (1973 to 2003), we reviewed 15 cases (5.8%) of skin and soft tissue infections, their outcome, complications and sequelae.

RESULTS

Ten children (66.7%) were aged < 2 years old. In eight patients (53.3%) there was a history of upper respiratory tract infection. Localization was in the head in 9 children (60%) and blood culture was positive in 10 patients (66.7%). Meningitis was a complication in 2 children (13.3%) and limited mobility of the hand was a sequel in one child (6.6%). After the universal establishment of the Hib vaccine in 1997, 3 new patients were admitted; 2 children with an infected thyroglossal cyst and another with cellulitis in the left leg. Of these children, one had received only the three primary doses of the vaccine but not the booster dose, and the remaining two were unvaccinated immigrant children.

CONCLUSION

Skin and soft tissue infections caused by Hib are potentially severe diseases with a risk of complications and sequelae. Due to the increase in unvaccinated immigrants and possible vaccine failures, universal immunization and epidemiological surveillance of carriers should be carried out to achieve total eradication.