Pneumonia directly affects : April 5, 2021 / By Preparation Point / Combined Competitive Examination Paper 2019 Mcqs SPSC Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn Circulatory system Respiratory system Digestive system Excretory system Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn