A systematic review of antibiotic drug shortages and the strategies employed for managing these shortages.

Background: There is a need to examine the impact of increasingly prevalent antibiotic shortages on patient outcomes and on the emergence and spread of antimicrobial resistance.

Objectives: To: (1) assess patterns and causes of shortages; (2) investigate the effect of shortages on health systems and patient outcomes; and (3) identify strategies for forecasting and managing shortages.

Data Sources: PubMed/MEDLINE, EMBASE, Scopus, and Web of Science.

Hyperimmune egg yolk antibodies developed against Clostridium perfringens antigens protect against necrotic enteritis.

Necrotic enteritis (NE) is a widespread infectious disease caused by Clostridium perfringens that inflicts major economic losses on the global poultry industry. Due to regulations on antibiotic use in poultry production, there is an urgent need for alternative strategies to mitigate the negative effects of NE. This paper presents a passive immunization technology that utilizes hyperimmune egg yolk immunoglobulin Y (IgY) specific to the major immunodominant antigens of C.