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Take home lessons: 1. the ultimate protection is our own immunity
2. What gave good immunity to the slum dwellers was probably absence of fear, and high microbial exposure in their daily lives.
I am sure the Bombay slum dwellers serology screening research team have preserved the serum samples for retesting “in pairs” to ensure the antibodies are static and not decline nor decaying in a few months’ time. WISH TO SEE THEIR FOLLOW UP’s serology antibody titers on these?
Thus study clearly shows that community spread gas already occurred , whether GOVT accepts it or not.
Allergy & Clinical Immumology
Diabetes & Endocrinology