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Table 1 Summary of collected samples

From: Microbiota fingerprints lose individually identifying features over time

Sample property

Values (number of samples)

Type

Air (144), skin (380), surface (288)

Season

Winter 2014 (203), Spring 2014 (203), Summer 2014 (203), Autumn 2014 (203)

Residence

Admiralty A (68), Fortress Hill (68), Ma On Shan (108), Quarry Bay (88), Sai Wan (88), Sha Tin Wai (88), Tai Koo (108), Tuen Mun B (108), Wu Kai Sha (88)

Site

Bed headboard surface (36), bedroom air (36), blanket surface (36), forehead skin (76), fridge door seal surface (36), kitchen air (36), kitchen ventilator surface (36), left forearm skin (76), left palm skin (76), living room air (36), remote control surface (36), right forearm skin (76), right palm skin (76), shower curtain surface (36), toilet air (36), toilet flush button surface (36), TV screen surface (36)

Individual (skin only)

Admiralty A z (20), Fortress Hill z (20), Ma On Shan w (20), Ma On Shan x (20), Ma On Shan y (20), Quarry Bay y (20), Quarry Bay z (20), Sai Wan y (20), Sai Wan z (20), Sha Tin Wai x (20), Sha Tin Wai y (20), Tai Koo x (20), Tai Koo y (20), Tai Koo z (20), Tuen Mun B w (20), Tuen Mun B x (20), Tuen Mun B y (20), Wu Kai Sha w (20), Wu Kai Sha y (20)