World's Best Scientists 2026 revealed!
Kelvin K. W. To

Kelvin K. W. To

D-Index & Metrics

Microbiology

D-Index
95
Citations
61897
World Ranking
527
National Ranking
16

Medicine

D-Index
95
Citations
63606
World Ranking
9845
National Ranking
109

Kelvin K. W. To publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where Kelvin K. W. To sits on this spectrum.

55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 264 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 233 scientists 205–214 publications: 207 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55 publications 679+

This scientist: 367 publications — 87th percentile

87% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

Kelvin K. W. To D-index placement in Microbiology in 2026

The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where Kelvin K. W. To sits on this spectrum.

40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 111 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 122 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 93 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 95 D-Index — 90th percentile

90% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

Overview

Kelvin K. W. To is affiliated with the University of Hong Kong in China and has contributed extensively to research in the field of medicine, with a primary focus on infectious diseases. Their work spans various subfields including epidemiology, molecular biology, pulmonary and respiratory medicine, and immunology.

The main topics of their research include SARS-CoV-2 and COVID-19 studies, COVID-19 clinical research, SARS-CoV-2 detection and testing methodologies, respiratory viral infections, viral gastroenteritis research and epidemiology, long-term effects of COVID-19, as well as studies on animal virus infections.

They have published in several renowned venues, frequently contributing to:

  • Emerging Microbes & Infections
  • Clinical Infectious Diseases
  • bioRxiv (Cold Spring Harbor Laboratory)
  • SSRN Electronic Journal
  • EBioMedicine

Some of their recent notable papers include:

  • "A familial cluster of pneumonia associated with the 2019 novel coronavirus indicating person-to-person transmission," 2020, The Lancet
  • "Temporal profiles of viral load in posterior oropharyngeal saliva samples and serum antibody responses during infection by SARS-CoV-2: an observational cohort study," 2020, The Lancet Infectious Diseases
  • "Genomic characterization of the 2019 novel human-pathogenic coronavirus isolated from a patient with atypical pneumonia after visiting Wuhan," 2020, Emerging Microbes & Infections
  • "Consistent Detection of 2019 Novel Coronavirus in Saliva," 2020, Clinical Infectious Diseases
  • "Gastrointestinal Manifestations of SARS-CoV-2 Infection and Virus Load in Fecal Samples From a Hong Kong Cohort: Systematic Review and Meta-analysis," 2020, Gastroenterology

Kelvin K. W. To collaborates frequently with other researchers, including:

  • Kwok-Yung Yuen
  • Jasper Fuk-Woo Chan
  • Ivan Fan-Ngai Hung
  • Kwok-Hung Chan
  • Jian-Piao Cai

Their research output demonstrates an extensive engagement with the ongoing scientific efforts to understand and manage infectious diseases, particularly the COVID-19 pandemic and its clinical, epidemiological, and molecular aspects.

Best Publications

  • A familial cluster of pneumonia associated with the 2019 novel coronavirus indicating person-to-person transmission: a study of a family cluster.

    Jasper Fuk Woo Chan;Shuofeng Yuan;Kin Hang Kok;Kelvin Kai Wang To;Kelvin Kai Wang To

  • Temporal profiles of viral load in posterior oropharyngeal saliva samples and serum antibody responses during infection by SARS-CoV-2: an observational cohort study.

    Kelvin Kai Wang To;Owen Tak Yin Tsang;Wai Shing Leung;Anthony Raymond Tam

  • Genomic characterization of the 2019 novel human-pathogenic coronavirus isolated from a patient with atypical pneumonia after visiting Wuhan.

    Jasper Fuk Woo Chan;Kin Hang Kok;Kin Hang Kok;Zheng Zhu;Hin Chu;Hin Chu

  • Consistent Detection of 2019 Novel Coronavirus in Saliva.

    Kelvin Kai Wang To;Kelvin Kai Wang To;Kelvin Kai Wang To;Owen Tak Yin Tsang;Cyril Chik-Yan Yip;Cyril Chik-Yan Yip;Kwok Hung Chan

  • Striking antibody evasion manifested by the Omicron variant of SARS-CoV-2

    Unknown

  • Gastrointestinal Manifestations of SARS-CoV-2 Infection and Virus Load in Fecal Samples From a Hong Kong Cohort: Systematic Review and Meta-analysis.

    Ka Shing Cheung;Ivan F.N. Hung;Pierre P.Y. Chan;K. C. Lung

  • Triple combination of interferon beta-1b, lopinavir-ritonavir, and ribavirin in the treatment of patients admitted to hospital with COVID-19: an open-label, randomised, phase 2 trial.

    Ivan Fan Ngai Hung;Kwok Cheung Lung;Eugene Yuk Keung Tso;Raymond Liu

  • Simulation of the clinical and pathological manifestations of Coronavirus Disease 2019 (COVID-19) in golden Syrian hamster model: implications for disease pathogenesis and transmissibility.

    Jasper Fuk Woo Chan;Jasper Fuk Woo Chan;Jasper Fuk Woo Chan;Anna Jinxia Zhang;Shuofeng Yuan;Vincent Kwok Man Poon

  • Improved Molecular Diagnosis of COVID-19 by the Novel, Highly Sensitive and Specific COVID-19-RdRp/Hel Real-Time Reverse Transcription-PCR Assay Validated In Vitro and with Clinical Specimens.

    Jasper Fuk-Woo Chan;Cyril Chik-Yan Yip;Kelvin Kai-Wang To;Tommy Hing-Cheung Tang

  • Human infections with the emerging avian influenza A H7N9 virus from wet market poultry: clinical analysis and characterisation of viral genome

    Yu Chen;Weifeng Liang;Shigui Yang;Nanping Wu

  • Middle East Respiratory Syndrome Coronavirus: Another Zoonotic Betacoronavirus Causing SARS-Like Disease

    Jasper F. W. Chan;Susanna K. P. Lau;Kelvin K. W. To;Vincent C. C. Cheng

  • Comparative tropism, replication kinetics, and cell damage profiling of SARS-CoV-2 and SARS-CoV with implications for clinical manifestations, transmissibility, and laboratory studies of COVID-19: an observational study.

    Hin Chu;Jasper Fuk-Woo Chan;Jasper Fuk-Woo Chan;Terrence Tsz-Tai Yuen;Huiping Shuai

  • The role of community-wide wearing of face mask for control of coronavirus disease 2019 (COVID-19) epidemic due to SARS-CoV-2.

    Vincent Chi Chung Cheng;Shuk Ching Wong;Vivien Wai Man Chuang;Simon Yung Chun So

  • Convalescent plasma treatment reduced mortality in patients with severe pandemic influenza A (H1N1) 2009 virus infection

    Ivan Fn Hung;Kelvin Kw To;Cheuk-Kwong Lee;Kar-Lung Lee

  • Effectiveness of neuraminidase inhibitors in reducing mortality in patients admitted to hospital with influenza A H1N1pdm09 virus infection: a meta-analysis of individual participant data.

    Stella G Muthuri;Sudhir Venkatesan;Puja R Myles;Jo Leonardi-Bee

  • Coronavirus Disease 2019 (COVID-19) Re-infection by a Phylogenetically Distinct Severe Acute Respiratory Syndrome Coronavirus 2 Strain Confirmed by Whole Genome Sequencing.

    Kelvin Kai-Wang To;Kelvin Kai-Wang To;Ivan Fan-Ngai Hung;Jonathan Daniel Ip;Allen Wing-Ho Chu

  • SARS-CoV-2 Omicron variant shows less efficient replication and fusion activity when compared with Delta variant in TMPRSS2-expressed cells

    Unknown

  • Comparative Replication and Immune Activation Profiles of SARS-CoV-2 and SARS-CoV in Human Lungs: An Ex Vivo Study With Implications for the Pathogenesis of COVID-19.

    Hin Chu;Jasper Fuk-Woo Chan;Yixin Wang;Terrence Tsz-Tai Yuen

  • Interspecies transmission and emergence of novel viruses: lessons from bats and birds.

    Jasper Fuk Woo Chan;Kelvin Kai Wang To;Herman Tse;Dong Yan Jin

  • Neutralization of SARS-CoV-2 Omicron variant by sera from BNT162b2 or Coronavac vaccine recipients

    Unknown

  • Acute SARS-CoV-2 Infection Impairs Dendritic Cell and T Cell Responses

    Runhong Zhou;Kelvin Kai Wang To;Yik Chun Wong;Li Liu

  • Infection of bat and human intestinal organoids by SARS-CoV-2.

    Jie Zhou;Cun Li;Xiaojuan Liu;Man Chun Chiu

  • Active Replication of Middle East Respiratory Syndrome Coronavirus and Aberrant Induction of Inflammatory Cytokines and Chemokines in Human Macrophages: Implications for Pathogenesis

    Jie Zhou;Hin Chu;Cun Li;Bosco Ho-Yin Wong

  • SARS-CoV-2 nsp13, nsp14, nsp15 and orf6 function as potent interferon antagonists.

    Chun Kit Yuen;Chun Kit Yuen;Joy Yan Lam;Joy Yan Lam;Wan Man Wong;Wan Man Wong;Long Fung Mak;Long Fung Mak

  • Delayed Clearance of Viral Load and Marked Cytokine Activation in Severe Cases of Pandemic H1N1 2009 Influenza Virus Infection

    Kelvin K. W. To;Ivan F. N. Hung;Iris W. S. Li;Kar-Lung Lee

  • Middle East Respiratory Syndrome Coronavirus Efficiently Infects Human Primary T Lymphocytes and Activates the Extrinsic and Intrinsic Apoptosis Pathways

    Hin Chu;Jie Zhou;Bosco Ho-Yin Wong;Cun Li

Frequent Co-Authors

Kwok-Yung Yuen
Kwok-Yung Yuen University of Hong Kong
Jasper F. W. Chan
Jasper F. W. Chan University of Hong Kong
Ivan Hung
Ivan Hung University of Hong Kong
Kwok-Hung Chan
Kwok-Hung Chan University of Hong Kong
Vincent C. C. Cheng
Vincent C. C. Cheng University of Hong Kong
Hin Chu
Hin Chu University of Hong Kong
Cyril C. Y. Yip
Cyril C. Y. Yip University of Hong Kong
Patrick C. Y. Woo
Patrick C. Y. Woo University of Hong Kong
Susanna K. P. Lau
Susanna K. P. Lau University of Hong Kong
Pak-Leung Ho
Pak-Leung Ho University of Hong Kong

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Related Online Degrees & Career Pathways

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