Letter to the Editor
Retrospective search of SARS-CoV-2 in respiratory samples in Vallès Occidental (Barcelona, Spain) before the first case was reported
Búsqueda retrospectiva del SARS-CoV-2 en muestras respiratorias en el Vallès Occidental (Barcelona, España) antes de que se notificara el primer caso
Ana Blanco-Suárez
, Pepa Pérez-Jové, Nerea Escribano-Castillejo, Mónica Ballestero-Tellez
Corresponding author
Servicio de Microbiología, Catlab, Viladecavalls, Barcelona, Spain
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| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 April | 11 | 21 | 32 |
| 2024 March | 43 | 39 | 82 |
| 2024 February | 41 | 16 | 57 |
| 2024 January | 41 | 13 | 54 |
| 2023 December | 35 | 37 | 72 |
| 2023 November | 32 | 33 | 65 |
| 2023 October | 45 | 41 | 86 |
| 2023 September | 20 | 31 | 51 |
| 2023 August | 16 | 5 | 21 |
| 2023 July | 16 | 79 | 95 |
| 2023 June | 27 | 8 | 35 |
| 2023 May | 44 | 10 | 54 |
| 2023 April | 29 | 4 | 33 |
| 2023 March | 10 | 5 | 15 |
| 2023 February | 16 | 16 | 32 |
| 2023 January | 18 | 4 | 22 |
| 2022 December | 20 | 16 | 36 |
| 2022 November | 29 | 26 | 55 |
| 2022 October | 39 | 25 | 64 |
| 2022 September | 33 | 34 | 67 |
| 2022 August | 34 | 22 | 56 |
| 2022 July | 25 | 11 | 36 |
| 2022 June | 28 | 18 | 46 |
| 2022 May | 34 | 33 | 67 |
| 2022 April | 53 | 17 | 70 |
| 2022 March | 47 | 11 | 58 |
| 2022 February | 41 | 6 | 47 |
| 2022 January | 38 | 7 | 45 |
| 2021 December | 38 | 14 | 52 |
| 2021 November | 47 | 15 | 62 |
| 2021 October | 35 | 24 | 59 |
| 2021 September | 41 | 11 | 52 |
| 2021 August | 34 | 13 | 47 |
| 2021 July | 83 | 6 | 89 |
| 2021 June | 33 | 11 | 44 |
| 2021 May | 53 | 9 | 62 |
| 2021 April | 80 | 36 | 116 |
| 2021 March | 81 | 20 | 101 |
| 2021 February | 66 | 17 | 83 |
| 2021 January | 97 | 35 | 132 |
| 2020 December | 179 | 75 | 254 |
| 2020 November | 5 | 10 | 15 |
| 2020 October | 5 | 13 | 18 |
| 2020 September | 10 | 11 | 21 |
| 2020 August | 6 | 22 | 28 |
| 2020 July | 5 | 47 | 52 |
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