Streptococcus pyogenes Hindi | Microbiology in Hindi | Bacteriology in Hindi | Bacitracin Test Hindi | Bacteriology | Basic Science Series Hindi<br /><br />Morphology and culturing of Streptococcus pyogenes in Hindi:<br />• Gram-positive cocci, non-motile, catalase –ve, <br />• 1 μm in diameter<br />• Bacteria in chains<br />• beta-hemolysis<br />• Upper respiratory tract infections <br />• Skin and subcutaneous connective tissue infections <br />Virulence factors of Streptococcus pyogenes in Hindi:<br />• Streptolysin O, streptolysin S: <br />• Destroy RBCs, responsible for hemolysis. <br />• Streptolysin O acts as an antigen.<br />• The antibodies against this antigen can also be used as a marker against the pathogen. <br />• Pyrogenic streptococcal exotoxins: Fever, sepsis and septic shock by the production of inflammatory cytokines<br />• Hyaluronidase: Degradation of hyaluronic acid.<br />• DNases: DNA Breakdown <br />• Streptokinase: Dissolves fibrin (help in the spread)<br />Lab diagnosis Streptococcus pyogenes in Hindi:<br />• Microscopy and culturing:<br />• Antigen detection: Group A antigen detection by particles coated with antibodies <br />• Agglutination <br />• Latex agglutination, <br />• Coagglutination<br />• Bacitracin disk test (0.04 IU or 0.05 IU not higher) <br />• Positive: Streptococcus pyogenes<br />• Negative: Streptococcus agalactiae<br /><br />Support my work at <a href="https://www.patreon.com/user?u=37177596" target="_blank" rel="nofollow">https://www.patreon.com/user?u=37177596</a> <br />Twitter: <a href="https://twitter.com/DrKumarLokender" target="_blank" rel="nofollow">https://twitter.com/DrKumarLokender</a> <br />Facebook: <a href="https://www.facebook.com/lokenderkumar.sharma" target="_blank" rel="nofollow">https://www.facebook.com/lokenderkumar.sharma</a> <br />Linkedin: <a href="https://www.linkedin.com/in/dr-lokender-kumar-58525945/" target="_blank" rel="nofollow">https://www.linkedin.com/in/dr-lokender-kumar-58525945/</a> <br /><br />Disclaimer: The information provided is for educational purposes only. The content of this channel should not be considered as medical advice of any kind. Use this information at your own risk. We hold no responsibility for any issue, concerns, or damage arising from the content of the video. Under no circumstances this channel be responsible or liable in any way for any content, including but not limited to, any errors or omissions in the content, any loss, any damage of any kind incurred as a result of any content communicated in this video, whether by this channel or a third party. In no event shall this channel be liable for any special indirect or consequential damages of any damages whatsoever resulting from the content of the channel.<br />...<br /><a href="https://www.youtube.com/watch?v=_5MWCHaAxdM" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=_5MWCHaAxdM</a>