A DGHI master student joined in a research study titled “Streptococcus Pneumoniae Colonization among Children in Galle, Sri Lanka” under the Duke-Ruhuna Collaborative Research Centre from June to August 2019 to collect data, data entry, data analysis and preparing reports as needed under the supervision of Dr. Gaya Wijayaratne.Investigators and Dr. Gayani Tillekeratne.