system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Quellung reaction is seen with:
assistant
The correct answer is  Quellung reaction Capsular swelling due to serological reaction Pneumococcal Capsular antigen + Antibody causes Capsular swelling Note:- MC fadyean's reaction Done for bacillus anthracis capsule (polypeptide)