| 55 | Humans |
| 27 | Adult |
| 26 | Male |
| 24 | Female |
| 21 | Severe Acute Respiratory Syndrome (psychology) |
| 21 | Middle Aged |
| 17 | Severe Acute Respiratory Syndrome (epidemiology) |
| 15 | Disease Outbreaks |
| 14 | Severe Acute Respiratory Syndrome (prevention & control) |
| 13 | Animals |
| 12 | Health Knowledge, Attitudes, Practice |
| 11 | SARS Virus |
| 11 | Influenza, Human (epidemiology) |
| 11 | Aged |
| 11 | Adolescent |
| 10 | Severe acute respiratory syndrome |
| 10 | Disease Outbreaks (prevention & control) |
| 9 | Surveys and Questionnaires |
| 9 | Influenza, Human (psychology) |
| 9 | Coronavirus |
| 8 | Severe Acute Respiratory Syndrome (transmission) |
| 8 | Pandemics |
| 8 | Hong Kong (epidemiology) |
| 7 | Public health |
| 7 | Coronavirus Infections (epidemiology) |
| 6 | Young Adult |
| 6 | Risk Assessment |
| 6 | Pneumonia, Viral (epidemiology) |
| 6 | Influenza, Human (prevention & control) |
| 6 | Influenza A Virus, H1N1 Subtype |
| 6 | Hong Kong |
| 6 | China (epidemiology) |
| 5 | SARS |
| 5 | Pneumonia |
| 5 | Influenza, Human (transmission) |
| 5 | Human |
| 5 | Epidemic |
| 5 | Cross-Sectional Studies |
| 5 | Comparative study |
| 5 | Canada |
| 5 | Betacoronavirus |
| 5 | Adaptation, Psychological |
| 4 | Social environment |
| 4 | Severe Acute Respiratory Syndrome (virology) |
| 4 | Risk perception |
| 4 | Qualitative Research |
| 4 | Pneumonia, Viral (diagnosis) |
| 4 | Personnel, Hospital (psychology) |
| 4 | Perception |
| 4 | Mental health |
| 4 | Interviews as Topic |
| 4 | Influenza A Virus, H5N1 Subtype |
| 4 | Health Behavior |
| 4 | Cross sectional study |
| 4 | Coronavirus Infections (diagnosis) |
| 4 | China |
| 3 | Virus |
| 3 | Viral disease |
| 3 | United Kingdom |
| 3 | Stress |
| 3 | Stigma |
| 3 | Social Support |
| 3 | Singapore |
| 3 | Severe Acute Respiratory Syndrome (economics) |
| 3 | Severe Acute Respiratory Syndrome (drug therapy) |
| 3 | SARS Virus (physiology) |
| 3 | Risk |
| 3 | Risk Factors |
| 3 | Regression Analysis |
| 3 | Quarantine (psychology) |
| 3 | Public Opinion |
| 3 | Psychological effect |
| 3 | Prevention |
| 3 | Prevalence |
| 3 | Prejudice |
| 3 | Politics |
| 3 | Pneumonia, Viral (psychology) |
| 3 | Pandemics (prevention & control) |
| 3 | Internationality |
| 3 | Influenza in Birds (transmission) |
| 3 | Influenza in Birds (psychology) |
| 3 | Influenza in Birds (prevention & control) |
| 3 | Infectious Disease Transmission, Patient-to-Professional |
| 3 | Hygiene |
| 3 | Hospital |
| 3 | Health staff |
| 3 | Health Surveys |
| 3 | Global Health |
| 3 | Fear (psychology) |
| 3 | Coronavirus Infections (virology) |
| 3 | Coronavirus Infections (psychology) |
| 3 | Coronavirus Infections (drug therapy) |
| 3 | Coping |
| 3 | Communicable Diseases, Emerging (psychology) |
| 3 | Communicable Diseases, Emerging (prevention & control) |
| 3 | Child, Preschool |
| 3 | Attitude |
| 3 | Attitude to Health |
| 3 | Anxiety |
| 3 | Antiviral Agents (therapeutic use) |
| 3 | Antiviral Agents (pharmacology) |
| 3 | Aircraft |
| 3 | Aged, 80 and over |
| 2 | severe acute respiratory syndrome |
| 2 | Vero Cells |
| 2 | Uncertainty |
| 2 | Treatment |
| 2 | Travel |
| 2 | Telephone |
| 2 | Taiwan (epidemiology) |
| 2 | Survey |
| 2 | Structure activity relation |
| 2 | Stress Disorders, Post-Traumatic (psychology) |
| 2 | Socioeconomic Factors |
| 2 | Social aspect |
| 2 | Severe acute respiratory syndrome (SARS) |
| 2 | Severe Acute Respiratory Syndrome (history) |
| 2 | Severe Acute Respiratory Syndrome (ethnology) |
| 2 | Severe Acute Respiratory Syndrome (diagnosis) |
| 2 | Self Efficacy |
| 2 | SARS, severe acute respiratory syndrome |
| 2 | SARS Virus (growth & development) |
| 2 | SARS Virus (drug effects) |
| 2 | Risk-Taking |
| 2 | Replication |
| 2 | Quarantine |
| 2 | Public Health |
| 2 | Psychology |
| 2 | Promazine |
| 2 | Poultry |
| 2 | Pneumonia, Viral (virology) |
| 2 | Pneumonia, Viral (prevention & control) |
| 2 | Pneumonia, Viral (mortality) |
| 2 | Physicians (psychology) |
| 2 | Ontario |
| 2 | Ontario (epidemiology) |
| 2 | Nosocomial infection |
| 2 | Molecular Structure |
| 2 | Models, Statistical |
| 2 | Mental disorder |
| 2 | Internet |
| 2 | Information Dissemination |
| 2 | Influenza |
| 2 | Infection |
| 2 | History, 21st Century |
| 2 | Health Policy |
| 2 | Health Personnel |
| 2 | Health Personnel (education) |
| 2 | HIV Infections (psychology) |
| 2 | HIV Infections (prevention & control) |
| 2 | HIV Infections (epidemiology) |
| 2 | Genome, Viral |
| 2 | Exposure |
| 2 | Drug Approval |
| 2 | Disease Outbreaks (statistics & numerical data) |
| 2 | Data Collection |
| 2 | Culture |
| 2 | Coronavirus Infections (prevention & control) |
| 2 | Coronavirus Infections (mortality) |
| 2 | Coronavirus (pathogenicity) |
| 2 | Communication |
| 2 | Communicable Diseases, Emerging (epidemiology) |
| 2 | Chlorocebus aethiops |
| 2 | Chinese |
| 2 | Child |
| 2 | Chi-Square Distribution |
| 2 | Betacoronavirus (pathogenicity) |
| 2 | Attitude of Health Personnel |
| 2 | Antiviral Agents (chemistry) |
| 2 | AIDS |
| 1 | severe acute respiratory syndrome (SARS) |
| 1 | respiratory |
| 1 | resilience |
| 1 | psychotherapy |
| 1 | poliomyelitis |
| 1 | mortality |
| 1 | integrative Chinese and western medical treatment |
| 1 | independently risk factor |
| 1 | historical note |
| 1 | difficult asthma |
| 1 | debriefing |
| 1 | cross sectional study |
| 1 | critical severe acute respiratory syndrome |
| 1 | clinical characteristics |
| 1 | asthma |
| 1 | Zoonoses (virology) |
| 1 | Zoonoses (epidemiology) |
| 1 | Young adult |
| 1 | Worry |
| 1 | Workplace (psychology) |
| 1 | Workforce |
| 1 | West Nile virus |
| 1 | West Nile Fever (psychology) |
| 1 | Water-Electrolyte Balance |
| 1 | Viruses (pathogenicity) |
| 1 | Viruses (genetics) |
| 1 | Viruses (drug effects) |
| 1 | Viruses (classification) |
| 1 | Virus Replication |
| 1 | Virus Replication (drug effects) |
| 1 | Virus Diseases (epidemiology) |
| 1 | Virus Attachment |
| 1 | Viral Vaccines |
| 1 | Viral Structural Proteins (genetics) |
| 1 | Vietnam |
| 1 | Vietnam (epidemiology) |
| 1 | Vertebrates (physiology) |
| 1 | Values |
| 1 | Vaccine |
| 1 | Universities |
| 1 | United States |
| 1 | United Kingdom (epidemiology) |
| 1 | Tuberculosis |
| 1 | Tuberculosis (psychology) |
| 1 | Tuberculosis (epidemiology) |
| 1 | Traumatology |
| 1 | Transportation |
| 1 | Transportation (methods) |
| 1 | Transportation (economics) |
| 1 | Transmission from man to man |
| 1 | Thiazoles (pharmacology) |
| 1 | Thiazoles (chemistry) |
| 1 | Theory |
| 1 | Testis (enzymology) |
| 1 | Technology |
| 1 | Taiwan |
| 1 | T-Lymphocytes (immunology) |
| 1 | T-Lymphocytes (drug effects) |
| 1 | Swine |
| 1 | Survivors (psychology) |
| 1 | Substance Abuse, Intravenous (prevention & control) |
| 1 | Students (statistics & numerical data) |
| 1 | Students (psychology) |
| 1 | Structure-Activity Relationship |
| 1 | Stress, Psychological |
| 1 | Stress, Psychological (therapy) |
| 1 | Stress, Psychological (prevention & control) |
| 1 | Stress, Psychological (etiology) |
| 1 | Stress Disorders, Post-Traumatic (virology) |
| 1 | Stress Disorders, Post-Traumatic (etiology) |
| 1 | Stress Disorders, Post-Traumatic (epidemiology) |
| 1 | Steroids (therapeutic use) |
| 1 | Steroids (pharmacology) |
| 1 | Steroids (adverse effects) |
| 1 | Steroids (administration & dosage) |
| 1 | Stereotyping |
| 1 | Statistics, Nonparametric |
| 1 | State Medicine |
| 1 | Standard operating procedures |
| 1 | Spike Glycoprotein, Coronavirus (metabolism) |
| 1 | Spermatozoa (enzymology) |
| 1 | Somatic complaint |
| 1 | Sociodemographic factor |
| 1 | Social support |
| 1 | Social perception |
| 1 | Social medicine |
| 1 | Social Stigma |
| 1 | Social Problems (psychology) |
| 1 | Social Problems (legislation & jurisprudence) |
| 1 | Social Problems (history) |
| 1 | Social Problems (ethnology) |
| 1 | Social Problems (economics) |
| 1 | Social Isolation |
| 1 | Social Environment |
| 1 | Social Change |
| 1 | Small Molecule Libraries (pharmacology) |
| 1 | Sleep |
| 1 | Sleep Initiation and Maintenance Disorders |
| 1 | Single nucleotide polymorphism |
| 1 | Singapore (ethnology) |
| 1 | Shock |
| 1 | Severity score |
| 1 | Severe acute respiratory syndrome virus |
| 1 | Severe Acute Respiratory Syndrome (therapy) |
| 1 | Severe Acute Respiratory Syndrome (immunology) |
| 1 | Severe Acute Respiratory Syndrome (genetics) |
| 1 | Self Care |
| 1 | Seasons |
| 1 | Schools |
| 1 | Saudi Arabia (epidemiology) |
| 1 | Safety Management (organization & administration) |
| 1 | SARS-CoV-2 |
| 1 | SARS Virus (pathogenicity) |
| 1 | SARS Virus (metabolism) |
| 1 | SARS Virus (immunology) |
| 1 | SARS Virus (genetics) |
| 1 | Ritonavir |
| 1 | Risk perceptions |
| 1 | Risk factor |
| 1 | Risk communication |
| 1 | Risk Management (methods) |
| 1 | Respiratory tract |
| 1 | Respiratory Tract Infections (transmission) |
| 1 | Respiratory Tract Diseases (epidemiology) |
| 1 | Respiration, Artificial |
| 1 | Resistance |
| 1 | Resident |
| 1 | Reproduction |
| 1 | Rehabilitation |
| 1 | Refusal to Treat |
| 1 | Reeducation |
| 1 | Reduction |
| 1 | Recommendations |
| 1 | Randomized Controlled Trials as Topic |
| 1 | Randomization |
| 1 | Racism |
| 1 | RT-PCR, reverse transcriptase-polymerase chain reaction |
| 1 | Quarantine (standards) |
| 1 | Quality-of-life |
| 1 | Qualitative |
| 1 | Qualitative analysis |
| 1 | Pyroptosis |
| 1 | Public Health Administration |
| 1 | Public Health (trends) |
| 1 | Public Health (legislation & jurisprudence) |
| 1 | Public Health (history) |
| 1 | Public Health (education) |
| 1 | Public Health (economics) |
| 1 | Psychotropic |
| 1 | Psychosocial factor |
| 1 | Psychological stress |
| 1 | Psychological responses |
| 1 | Psychiatry |
| 1 | Psychiatric Department, Hospital |
| 1 | Protein Conformation |
| 1 | Protein Binding |
| 1 | Protection safety equipment |
| 1 | Protection motivation theory |
| 1 | Protease inhibitor |
| 1 | Promoter Regions, Genetic |
| 1 | Program Evaluation |
| 1 | Program Development |
| 1 | Professional status |
| 1 | Primary health care |
| 1 | Primary Health Care (organization & administration) |
| 1 | Preventive behaviors |
| 1 | Pregnancy |
| 1 | Pregnancy Complications, Infectious (etiology) |
| 1 | Pregnancy Complications, Infectious (epidemiology) |
| 1 | Precautionary behavior |
| 1 | Posttraumatic syndrome |
| 1 | Polymorphism, Single Nucleotide |
| 1 | Pneumonia, Viral |
| 1 | Pneumonia, Viral (therapy) |
| 1 | Pneumonia, Viral (pathology) |
| 1 | Pneumonia, Viral (immunology) |
| 1 | Pneumonia, Viral (etiology) |
| 1 | Pneumonia, Viral (economics) |
| 1 | Pneumonia, Viral (drug therapy) |
| 1 | Phylogeny |
| 1 | Phenothiazines (toxicity) |
| 1 | Phenothiazines (therapeutic use) |
| 1 | Phenothiazines (pharmacology) |
| 1 | Phenothiazines (administration & dosage) |
| 1 | Phenothiazine derivatives |
| 1 | Personnel, Hospital (statistics & numerical data) |
| 1 | Personnel, Hospital (education) |
| 1 | Personal experience |
| 1 | Personal Protective Equipment (supply & distribution) |
| 1 | Perceptions |
| 1 | Perceived threat |
| 1 | Peptidyl-Dipeptidase A (physiology) |
| 1 | Peptidyl-Dipeptidase A (genetics) |
| 1 | Peptidyl-Dipeptidase A (chemistry) |
| 1 | Peptides (isolation & purification) |
| 1 | Peptidases |
| 1 | Pediatrics |
| 1 | Patients (psychology) |
| 1 | Patient Isolation |
| 1 | Pandemics (statistics & numerical data) |
| 1 | Pandemics (economics) |
| 1 | Pandemic |
| 1 | Pandemic influenza |
| 1 | PTSD, post-traumatic stress disorder |
| 1 | Orthopedics |
| 1 | Optimism bias |
| 1 | Opinion inquiry |
| 1 | Occupational Health (statistics & numerical data) |
| 1 | Occupational Health (legislation & jurisprudence) |
| 1 | Nutritional Support |
| 1 | Nursing Staff, Hospital (psychology) |
| 1 | Nursing Staff, Hospital (organization & administration) |
| 1 | Nursing Staff, Hospital (education) |
| 1 | Nurses (psychology) |
| 1 | Nurse's Role |
| 1 | Niclosamide |
| 1 | New York |
| 1 | New York City |
| 1 | Neutral Red (metabolism) |
| 1 | Neuroleptic |
| 1 | Netherlands |
| 1 | Neighbourhood |
| 1 | Needle-Exchange Programs (organization & administration) |
| 1 | Needle Sharing (adverse effects) |
| 1 | National Health Programs |
| 1 | Myxovirus Resistance Proteins |
| 1 | Mutagenesis (genetics) |
| 1 | Multivariate Analysis |
| 1 | Mouse |
| 1 | Molecular interaction |
| 1 | Models |
| 1 | Models, Molecular |
| 1 | Models, Animal |
| 1 | Mobile phone |
| 1 | Minority Groups (psychology) |
| 1 | Minority Groups (education) |
| 1 | Middle East respiratory syndrome |
| 1 | Middle East Respiratory Syndrome Coronavirus |
| 1 | Middle East Respiratory Syndrome Coronavirus (physiology) |
| 1 | Middle East Respiratory Syndrome Coronavirus (drug effects) |
| 1 | Microbial Sensitivity Tests |
| 1 | Mice |
| 1 | Mice, Inbred BALB C |
| 1 | Methods |
| 1 | Mental Disorders (epidemiology) |
| 1 | Medicine |
| 1 | Medicine, Chinese Traditional |
| 1 | Medical Staff |
| 1 | Medical Staff, Hospital |
| 1 | Mass Media |
| 1 | Masks (statistics & numerical data) |
| 1 | Marketing authorization |
| 1 | Maintenance |
| 1 | Macrophages (immunology) |
| 1 | Macrophages (drug effects) |
| 1 | Lung (virology) |
| 1 | Lung (pathology) |
| 1 | Lopinavir |
| 1 | Laboratory Animal Science |
| 1 | Korea |
| 1 | Japan |
| 1 | Intrusive thoughts |
| 1 | Intravenous administration |
| 1 | Intervention |
| 1 | Interpersonal Relations |
| 1 | Internationality (legislation & jurisprudence) |
| 1 | Internationality (history) |
| 1 | International comparison |
| 1 | Interleukin-6 (immunology) |
| 1 | Interleukin-6 (antagonists & inhibitors) |
| 1 | Interferon-beta (immunology) |
| 1 | Interferon-alpha (immunology) |
| 1 | Intensive care unit |
| 1 | Inhibitory Concentration 50 |
| 1 | Inhibitor enzyme complex |
| 1 | Information sources |
| 1 | Information Services |
| 1 | Influenza, Human (ethnology) |
| 1 | Influenza vaccines |
| 1 | Influenza in Birds (epidemiology) |
| 1 | Influenza epidemic |
| 1 | Influenza Vaccines (therapeutic use) |
| 1 | Influenza Vaccines (administration & dosage) |
| 1 | Influenza A(H1N1) |
| 1 | Influenza A Virus, H7N9 Subtype |
| 1 | Influenza A Virus, H7N9 Subtype (pathogenicity) |
| 1 | Influenza A Virus, H1N1 Subtype (isolation & purification) |
| 1 | Infectious diseases |
| 1 | Infectious Disease Transmission, Patient-to-Professional (prevention & control) |
| 1 | Infection Control (organization & administration) |
| 1 | Infection Control (methods) |
| 1 | Infant |
| 1 | Infant, Newborn |
| 1 | Indication |
| 1 | Incidence |
| 1 | Import |
| 1 | Immunosuppressive Agents (therapeutic use) |
| 1 | Immunosuppressive Agents (pharmacology) |
| 1 | Immunity |
| 1 | Immunity, Innate |
| 1 | Illicit drug |
| 1 | Human-to-human H5N1 |
| 1 | Human immunodeficiency virus |
| 1 | Human Activities |
| 1 | Housing |
| 1 | Housing, Animal |
| 1 | Hospitals, Urban |
| 1 | Hong Kong (ethnology) |
| 1 | Homeless |
| 1 | High-Throughput Screening Assays |
| 1 | High risk |
| 1 | Heine-Medin disease |
| 1 | Health promotion |
| 1 | Health policy |
| 1 | Health care staff |
| 1 | Health Status |
| 1 | Health Services Needs and Demand |
| 1 | Health Services Accessibility |
| 1 | Health Promotion (methods) |
| 1 | Health Personnel (psychology) |
| 1 | Health Personnel (legislation & jurisprudence) |
| 1 | Health Personnel (history) |
| 1 | Health Personnel (economics) |
| 1 | Health Education |
| 1 | Health Communication |
| 1 | Health Care Surveys |
| 1 | Health Care Costs |
| 1 | Handling, Psychological |
| 1 | HRCT, high resolution computed tomography |
| 1 | HIV-1 |
