Document Overview: This document is a condensed technical reference related to laboratory methods for diagnosing Cryptosporidiosis, specifically focusing on a Gram stain protocol. It acknowledges contributions from various experts and references key publications in the field.

1. References and Acknowledgements

• Key references include Moody A.H. and Fleck S.L. (1985) on Versatile Field’s Stain and Weber R et al. (1992) on improved light-microscopic detection of Microsporidia spores.
• Acknowledgements are given to J. Williams, LSH & TM, and A. Moody, LHTD for their contributions.

2. Laboratory Methodology

• The document is a condensed version of ACP broadsheet 128 (June 1991) focusing on laboratory methods for diagnosing Cryptosporidiosis.
• It includes a Gram stain protocol, which is a critical staining technique used in microbiology to detect specific pathogens.

3. Contact and Document Identification

• Document code: APA004 - V10 dated 02/2021.
• Contact details for the issuing organization located at Unit 5, Sapphire Centre, Fishponds Road, Wokingham, Berkshire, RG41 2QL, UK.
• Telephone: +44 (0)118 979 5566; Fax: +44 (0)118 979 5186.

4. Key Points and Recommendations

• The document emphasizes the importance of standardized staining protocols for accurate diagnosis of Cryptosporidiosis and Microsporidia infections.
• It highlights improved microscopic detection techniques as per referenced studies.
• Although specific procedural steps are not detailed in the excerpt, the document serves as a reference guide for laboratory personnel.