3c35f4370211cde6442ec33df1753587 335896.pdf 37da0b4e29c74f10e6a06a79dc8934cba31985af 335896.pdf f660b58312c51aac2b0faf2584c34a5584dc2b5bbd9b02b223fba1cc2d2f8a63 335896.pdf Title: HYG_2510064 1..7 Creator: CUP Producer: Acrobat Distiller 25.0 (Windows) CreationDate: Fri Oct 17 10:25:18 2025 CEST ModDate: Fri Oct 17 10:25:18 2025 CEST Custom Metadata: no Metadata Stream: yes Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 7 Encrypted: no Page size: 595.276 x 793.701 pts Page rot: 0 File size: 326000 bytes Optimized: yes PDF version: 1.3 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- GNGKBK+AdvOT0e40dc65 Type 1C WinAnsi yes yes no 303 0 GNGKOG+AdvOT1ef757c0 Type 1C WinAnsi yes yes no 304 0 GNGKOH+AdvOT8608a8d1+20 Type 1C WinAnsi yes yes no 305 0 GNGKOI+AdvOT1ef757c0+20 Type 1C WinAnsi yes yes no 306 0 GNGKOJ+AdvOTa42dc7d3.B Type 1C WinAnsi yes yes no 307 0 GNGKPK+AdvOT1ef757c0+22 Type 1C Custom yes yes yes 308 0 GNGKPL+AdvOT7d6df7ab.I Type 1C WinAnsi yes yes no 309 0 GNGKPM+AdvOTcabc3928.I Type 1C WinAnsi yes yes no 310 0 GNGLAM+AdvOT0e40dc65+20 Type 1C WinAnsi yes yes no 311 0 GNGMBH+AdvOT28ad7737.I Type 1C WinAnsi yes yes no 92 0 GNGMCI+AdvTT5843c571+03 Type 1C Custom yes yes yes 91 0 GNGMCJ+AdvP4C4E74 Type 1C Custom yes yes no 93 0 GNGMCK+AdvOT8608a8d1+22 Type 1C Custom yes yes yes 96 0 GNGMFJ+AdvOT0e40dc65+22 Type 1C Custom yes yes yes 97 0 GNGMGK+AdvOT031da8bf Type 1C WinAnsi yes yes no 103 0 GNGNCH+AdvOTb65e897d.B Type 1C WinAnsi yes yes no 106 0 GNGNDH+AdvOTdd3b7348.I+20 Type 1C WinAnsi yes yes no 107 0 Jhove (Rel. 1.28.0, 2023-05-18) Date: 2026-09-05 04:36:32 CEST RepresentationInformation: 335896.pdf ReportingModule: PDF-hul, Rel. 1.12.4 (2023-03-16) LastModified: 2026-09-04 13:53:11 CEST Size: 326000 Format: PDF Version: 1.3 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf Profile: Linearized PDF PDFMetadata: Objects: 379 FreeObjects: 1 IncrementalUpdates: 1 DocumentCatalog: PageLayout: SinglePage PageMode: UseOutlines Outlines: Item: Title: Mask wearing by COVID-19 index cases reduces SARS-CoV-2 transmission to household contacts Destination: atlS0950268825100642 Children: Item: Title: Introduction Destination: Headingssec1_HYG_2510064 Item: Title: Materials and methods Destination: Headingssec2_HYG_2510064 Children: Item: Title: Study design Destination: Headingssec3_HYG_2510064 Item: Title: Participants Destination: Headingssec4_HYG_2510064 Item: Title: Questionnaire design Destination: Headingssec5_HYG_2510064 Item: Title: Data collection Destination: Headingssec6_HYG_2510064 Item: Title: Sampling and sample size Destination: Headingssec7_HYG_2510064 Item: Title: Statistical analysis Destination: Headingssec8_HYG_2510064 Item: Title: Ethical considerations Destination: Headingssec9_HYG_2510064 Item: Title: Results Destination: Headingssec10_HYG_2510064 Item: Title: Discussion Destination: Headingssec11_HYG_2510064 Item: Title: Supplementary material Destination: Headingsnts1_HYG_2510064 Item: Title: Data availability statement Destination: Headingssec12_HYG_2510064 Item: Title: Acknowledgements Destination: Headings_HYG_2510064 Item: Title: Author contribution Destination: Headingssec13_HYG_2510064 Item: Title: Funding statement Destination: Headingssec18_HYG_2510064 Item: Title: Competing interests Destination: Headingssec14_HYG_2510064 Item: Title: Institutional review board statement Destination: Headingssec15_HYG_2510064 Item: Title: Informed consent statement Destination: Headingssec16_HYG_2510064 Item: Title: The SARS-CoV-2 Transmission to Household Contacts Working Group (PI21/01883 and ESP22PI01) members Destination: Headingssec17_HYG_2510064 Item: Title: References Destination: Headingsrefs1_HYG_2510064 Info: Title: HYG_2510064 1..7 Creator: CUP Producer: Acrobat Distiller 25.0 (Windows) CreationDate: Fri Oct 17 10:55:18 CEST 2025 ModDate: Fri Oct 17 10:55:18 CEST 2025 ID: 0x2ff964f4e60a0f22fff7a6ed33158092, 0x501e600774c87a49992b2f7f42a65b17 Filters: FilterPipeline: FlateDecode Fonts: Type1: Font: BaseFont: GNGMCK+AdvOT8608a8d1+22 FontSubset: true FirstChar: 1 LastChar: 1 FontDescriptor: FontName: GNGMCK+AdvOT8608a8d1+22 Flags: Symbolic FontBBox: 0, -322, 1218, 968 FontFile3: true EncodingDictionary: Differences: true ToUnicode: true Font: BaseFont: GNGMFJ+AdvOT0e40dc65+22 FontSubset: true FirstChar: 1 LastChar: 1 FontDescriptor: FontName: GNGMFJ+AdvOT0e40dc65+22 Flags: Symbolic FontBBox: -166, -156, 739, 812 FontFile3: true EncodingDictionary: Differences: true ToUnicode: true Font: BaseFont: GNGMGK+AdvOT031da8bf FontSubset: true FirstChar: 46 LastChar: 108 FontDescriptor: FontName: GNGMGK+AdvOT031da8bf Flags: Nonsymbolic FontBBox: -41, -250, 822, 875 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGNCH+AdvOTb65e897d.B FontSubset: true FirstChar: 45 LastChar: 243 FontDescriptor: FontName: GNGNCH+AdvOTb65e897d.B Flags: Serif, Nonsymbolic FontBBox: -20, -250, 968, 854 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGNDH+AdvOTdd3b7348.I+20 FontSubset: true FirstChar: 150 LastChar: 150 FontDescriptor: FontName: GNGNDH+AdvOTdd3b7348.I+20 Flags: Nonsymbolic FontBBox: -6, 196, 505, 243 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGKBK+AdvOT0e40dc65 FontSubset: true FirstChar: 37 LastChar: 250 FontDescriptor: FontName: GNGKBK+AdvOT0e40dc65 Flags: Nonsymbolic FontBBox: -31, -250, 791, 875 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGKOG+AdvOT1ef757c0 FontSubset: true FirstChar: 37 LastChar: 250 FontDescriptor: FontName: GNGKOG+AdvOT1ef757c0 Flags: Serif, Nonsymbolic FontBBox: -20, -250, 947, 854 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGKOH+AdvOT8608a8d1+20 FontSubset: true FirstChar: 150 LastChar: 150 FontDescriptor: FontName: GNGKOH+AdvOT8608a8d1+20 Flags: Nonsymbolic FontBBox: 0, 200, 500, 250 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGKOI+AdvOT1ef757c0+20 FontSubset: true FirstChar: 145 LastChar: 146 FontDescriptor: FontName: GNGKOI+AdvOT1ef757c0+20 Flags: Nonsymbolic FontBBox: -135, -218, 1010, 833 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGKOJ+AdvOTa42dc7d3.B FontSubset: true FirstChar: 40 LastChar: 121 FontDescriptor: FontName: GNGKOJ+AdvOTa42dc7d3.B Flags: Nonsymbolic FontBBox: -41, -250, 843, 885 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGKPK+AdvOT1ef757c0+22 FontSubset: true FirstChar: 1 LastChar: 1 FontDescriptor: FontName: GNGKPK+AdvOT1ef757c0+22 Flags: Symbolic FontBBox: -135, -166, 697, 916 FontFile3: true EncodingDictionary: Differences: true ToUnicode: true Font: BaseFont: GNGKPL+AdvOT7d6df7ab.I FontSubset: true FirstChar: 46 LastChar: 121 FontDescriptor: FontName: GNGKPL+AdvOT7d6df7ab.I Flags: Nonsymbolic FontBBox: -135, -250, 1000, 854 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGKPM+AdvOTcabc3928.I FontSubset: true FirstChar: 46 LastChar: 121 FontDescriptor: FontName: GNGKPM+AdvOTcabc3928.I Flags: Nonsymbolic FontBBox: -114, -250, 822, 875 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGLAM+AdvOT0e40dc65+20 FontSubset: true FirstChar: 150 LastChar: 150 FontDescriptor: FontName: GNGLAM+AdvOT0e40dc65+20 Flags: Nonsymbolic FontBBox: -166, -281, 1156, 906 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGMCI+AdvTT5843c571+03 FontSubset: true FirstChar: 1 LastChar: 1 FontDescriptor: FontName: GNGMCI+AdvTT5843c571+03 Flags: Symbolic FontBBox: -437, -229, 875, 885 FontFile3: true EncodingDictionary: Differences: true ToUnicode: true Font: BaseFont: GNGMBH+AdvOT28ad7737.I FontSubset: true FirstChar: 68 LastChar: 122 FontDescriptor: FontName: GNGMBH+AdvOT28ad7737.I Flags: Nonsymbolic FontBBox: -125, -250, 833, 875 FontFile3: true Encoding: WinAnsiEncoding Font: BaseFont: GNGMCJ+AdvP4C4E74 FontSubset: true FirstChar: 1 LastChar: 1 FontDescriptor: FontName: GNGMCJ+AdvP4C4E74 Flags: Symbolic FontBBox: -20, -958, 1114, 770 FontFile3: true EncodingDictionary: Differences: true XMP: application/pdf HYG_2510064 1..7 CUP 2025-10-17T13:55:18+05:30 2025-10-17T13:55:18+05:30 Acrobat Distiller 25.0 (Windows) uuid:9da56200-01de-407b-9133-0f99d50efa8f uuid:bcf9dd3f-4278-46c7-9bb4-0a31fe4d912f Pages: Page: Label: 1 Annotations: Annotation: Subtype: Link Rect: 248, 695, 252, 705 Destination: 246 Annotation: Subtype: Link Rect: 254, 695, 258, 705 Destination: 246 Annotation: Subtype: Link Rect: 260, 693, 268, 701 Annotation: Subtype: Link Rect: 338, 695, 342, 705 Destination: 246 Annotation: Subtype: Link Rect: 344, 695, 348, 705 Destination: 246 Annotation: Subtype: Link Rect: 445, 695, 449, 705 Destination: 246 Annotation: Subtype: Link Rect: 451, 695, 455, 705 Destination: 246 Annotation: Subtype: Link Rect: 524, 695, 528, 705 Destination: 246 Annotation: Subtype: Link Rect: 530, 693, 539, 701 Annotation: Subtype: Link Rect: 275, 679, 279, 689 Destination: 246 Annotation: Subtype: Link Rect: 281, 679, 285, 689 Destination: 246 Annotation: Subtype: Link Rect: 358, 679, 362, 689 Destination: 246 Annotation: Subtype: Link Rect: 422, 679, 426, 689 Destination: 246 Annotation: Subtype: Link Rect: 484, 679, 488, 689 Destination: 246 Annotation: Subtype: Link Rect: 490, 679, 494, 689 Destination: 246 Annotation: Subtype: Link Rect: 256, 663, 259, 673 Destination: 246 Annotation: Subtype: Link Rect: 261, 663, 265, 673 Destination: 246 Annotation: Subtype: Link Rect: 316, 663, 320, 673 Destination: 246 Annotation: Subtype: Link Rect: 376, 663, 380, 673 Destination: 246 Annotation: Subtype: Link Rect: 438, 663, 442, 673 Destination: 246 Annotation: Subtype: Link Rect: 444, 663, 448, 673 Destination: 246 Annotation: Subtype: Link Rect: 514, 663, 518, 673 Destination: 246 Annotation: Subtype: Link Rect: 520, 663, 524, 673 Destination: 246 Annotation: Subtype: Link Rect: 279, 647, 283, 657 Destination: 246 Annotation: Subtype: Link Rect: 285, 647, 288, 657 Destination: 246 Annotation: Subtype: Link Rect: 351, 647, 355, 657 Destination: 246 Annotation: Subtype: Link Rect: 402, 647, 406, 657 Destination: 246 Annotation: Subtype: Link Rect: 482, 647, 485, 657 Destination: 246 Annotation: Subtype: Link Rect: 539, 647, 543, 657 Destination: 246 Annotation: Subtype: Link Rect: 303, 631, 307, 641 Destination: 246 Annotation: Subtype: Link Rect: 309, 631, 313, 641 Destination: 246 Annotation: Subtype: Link Rect: 314, 631, 322, 641 Destination: 246 Annotation: Subtype: Link Rect: 387, 631, 391, 641 Destination: 246 Annotation: Subtype: Link Rect: 392, 631, 396, 641 Destination: 246 Annotation: Subtype: Link Rect: 483, 631, 487, 641 Destination: 246 Annotation: Subtype: Link Rect: 489, 631, 493, 641 Destination: 246 Annotation: Subtype: Link Rect: 495, 629, 503, 637 Annotation: Subtype: Link Rect: 232, 259, 237, 268 Destination: 79 Annotation: Subtype: Link Rect: 388, 237, 392, 246 Destination: 79 Annotation: Subtype: Link Rect: 397, 237, 401, 246 Destination: 79 Annotation: Subtype: Link Rect: 382, 204, 386, 213 Destination: 79 Annotation: Subtype: Link Rect: 425, 182, 430, 191 Destination: 79 Annotation: Subtype: Link Rect: 357, 160, 362, 170 Destination: 79 Annotation: Subtype: Link Rect: 366, 160, 375, 170 Destination: 79 Annotation: Subtype: Link Rect: 292, 149, 301, 159 Destination: 79 Annotation: Subtype: Link Rect: 304, 149, 313, 159 Destination: 79 Annotation: Subtype: Link Rect: 317, 127, 325, 137 Destination: 79 Annotation: Subtype: Link Rect: 541, 116, 550, 126 Destination: 79 Annotation: Subtype: Link Rect: 420, 94, 429, 104 Destination: 79 Annotation: Subtype: Link Rect: 481, 72, 490, 82 Destination: 79 Annotation: Subtype: Link Rect: 451, 50, 460, 60 Destination: 79 Annotation: Subtype: Link Rect: 42, 540, 174, 548 Annotation: Subtype: Link Rect: 65, 434, 126, 442 Annotation: Subtype: Link Rect: 134, 125, 154, 132 Annotation: Subtype: Link Rect: 42, 116, 155, 123 Page: Label: 2 Annotations: Annotation: Subtype: Link Rect: 42, 641, 51, 650 Destination: 79 Annotation: Subtype: Link Rect: 205, 619, 214, 628 Destination: 79 Annotation: Subtype: Link Rect: 219, 619, 228, 628 Destination: 79 Annotation: Subtype: Link Rect: 123, 494, 132, 504 Destination: 79 Annotation: Subtype: Link Rect: 272, 83, 276, 92 Destination: 79 Page: Label: 3 Annotations: Annotation: Subtype: Link Rect: 198, 178, 286, 187 Annotation: Subtype: Link Rect: 219, 101, 246, 110 Destination: 17 Page: Label: 4 Annotations: Annotation: Subtype: Link Rect: 229, 367, 257, 376 Destination: 17 Annotation: Subtype: Link Rect: 239, 345, 266, 354 Destination: 23 Annotation: Subtype: Link Rect: 42, 257, 70, 266 Destination: 23 Annotation: Subtype: Link Rect: 83, 180, 111, 190 Destination: 23 Annotation: Subtype: Link Rect: 224, 104, 252, 113 Destination: 36 Annotation: Subtype: Link Rect: 193, 543, 196, 551 Destination: 23 Annotation: Subtype: Link Rect: 261, 543, 264, 551 Destination: 23 Page: Label: 5 Annotations: Annotation: Subtype: Link Rect: 79, 370, 88, 379 Destination: 79 Annotation: Subtype: Link Rect: 94, 370, 103, 379 Destination: 79 Annotation: Subtype: Link Rect: 253, 359, 262, 368 Destination: 79 Annotation: Subtype: Link Rect: 178, 348, 187, 357 Destination: 79 Annotation: Subtype: Link Rect: 205, 337, 214, 347 Destination: 79 Annotation: Subtype: Link Rect: 223, 315, 232, 325 Destination: 79 Annotation: Subtype: Link Rect: 45, 282, 54, 292 Destination: 79 Annotation: Subtype: Link Rect: 243, 282, 252, 292 Destination: 79 Annotation: Subtype: Link Rect: 258, 282, 267, 292 Destination: 79 Annotation: Subtype: Link Rect: 187, 206, 196, 215 Destination: 79 Annotation: Subtype: Link Rect: 184, 96, 194, 105 Destination: 79 Annotation: Subtype: Link Rect: 260, 96, 270, 105 Destination: 79 Annotation: Subtype: Link Rect: 522, 163, 531, 172 Destination: 79 Annotation: Subtype: Link Rect: 309, 130, 319, 140 Destination: 79 Annotation: Subtype: Link Rect: 326, 130, 335, 140 Destination: 79 Annotation: Subtype: Link Rect: 401, 97, 410, 107 Destination: 79 Annotation: Subtype: Link Rect: 420, 75, 429, 85 Destination: 79 Page: Label: 6 Annotations: Annotation: Subtype: Link Rect: 247, 696, 256, 705 Destination: 79 Annotation: Subtype: Link Rect: 258, 586, 267, 596 Destination: 79 Annotation: Subtype: Link Rect: 136, 509, 224, 519 Annotation: Subtype: Link Rect: 274, 455, 283, 464 Destination: 79 Annotation: Subtype: Link Rect: 79, 389, 84, 398 Destination: 79 Annotation: Subtype: Link Rect: 89, 389, 93, 398 Destination: 79 Annotation: Subtype: Link Rect: 99, 389, 108, 398 Destination: 79 Annotation: Subtype: Link Rect: 42, 301, 51, 311 Destination: 79 Annotation: Subtype: Link Rect: 153, 301, 162, 311 Destination: 79 Annotation: Subtype: Link Rect: 99, 279, 108, 289 Destination: 79 Annotation: Subtype: Link Rect: 114, 279, 123, 289 Destination: 79 Annotation: Subtype: Link Rect: 129, 279, 138, 289 Destination: 79 Annotation: Subtype: Link Rect: 136, 224, 145, 234 Destination: 79 Annotation: Subtype: Link Rect: 151, 224, 160, 234 Destination: 79 Annotation: Subtype: Link Rect: 250, 224, 259, 234 Destination: 79 Annotation: Subtype: Link Rect: 540, 652, 549, 661 Destination: 79 Annotation: Subtype: Link Rect: 332, 229, 469, 237 Page: Label: 7 Annotations: Annotation: Subtype: Link Rect: 60, 350, 289, 358 Annotation: Subtype: Link Rect: 60, 340, 131, 348 Checksum: 5d6edf2a Type: CRC32 Checksum: 3c35f4370211cde6442ec33df1753587 Type: MD5 Checksum: 37da0b4e29c74f10e6a06a79dc8934cba31985af Type: SHA-1 Checksum: f660b58312c51aac2b0faf2584c34a5584dc2b5bbd9b02b223fba1cc2d2f8a63 Type: SHA-256