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1.
Gastroenterology ; 159(4): 1302-1310.e5, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32598884

RESUMEN

BACKGROUND & AIMS: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infects intestinal cells, and might affect the intestinal microbiota. We investigated changes in the fecal fungal microbiomes (mycobiome) of patients with SARS-CoV-2 infection during hospitalization and on recovery. METHODS: We performed deep shotgun metagenomic sequencing analysis of fecal samples from 30 patients with coronavirus disease 2019 (COVID-19) in Hong Kong, from February 5 through May 12, 2020. Fecal samples were collected 2 to 3 times per week from time of hospitalization until discharge. We compared fecal mycobiome compositions of patients with COVID-19 with those from 9 subjects with community-acquired pneumonia and 30 healthy individuals (controls). We assessed fecal mycobiome profiles throughout time of hospitalization until clearance of SARS-CoV-2 from nasopharyngeal samples. RESULTS: Patients with COVID-19 had significant alterations in their fecal mycobiomes compared with controls, characterized by enrichment of Candia albicans and a highly heterogeneous mycobiome configuration, at time of hospitalization. Although fecal mycobiomes of 22 patients with COVID-19 did not differ significantly from those of controls during times of hospitalization, 8 of 30 patients with COVID-19 had continued significant differences in fecal mycobiome composition, through the last sample collected. The diversity of the fecal mycobiome of the last sample collected from patients with COVID-19 was 2.5-fold higher than that of controls (P < .05). Samples collected at all timepoints from patients with COVID-19 had increased proportions of opportunistic fungal pathogens, Candida albicans, Candida auris, and Aspergillus flavus compared with controls. Two respiratory-associated fungal pathogens, A. flavus and Aspergillus niger, were detected in fecal samples from a subset of patients with COVID-19, even after clearance of SARS-CoV-2 from nasopharyngeal samples and resolution of respiratory symptoms. CONCLUSIONS: In a pilot study, we found heterogeneous configurations of the fecal mycobiome, with enrichment of fungal pathogens from the genera Candida and Aspergillus, during hospitalization of 30 patients with COVID-19 compared with controls. Unstable gut mycobiomes and prolonged dysbiosis persisted in a subset of patients with COVID-19 up to 12 days after nasopharyngeal clearance of SARS-CoV-2. Studies are needed to determine whether alterations in intestinal fungi contribute to or result from SARS-CoV-2 infection, and the effects of these changes in disease progression.


Asunto(s)
Infecciones por Coronavirus/microbiología , Heces/microbiología , Hongos/aislamiento & purificación , Microbioma Gastrointestinal , Micobioma , Neumonía Viral/microbiología , Adulto , Anciano , Aspergillus flavus/genética , Aspergillus flavus/aislamiento & purificación , Aspergillus niger/genética , Aspergillus niger/aislamiento & purificación , Betacoronavirus , COVID-19 , Candida/genética , Candida/aislamiento & purificación , Candida albicans/genética , Candida albicans/aislamiento & purificación , Estudios de Casos y Controles , Infecciones Comunitarias Adquiridas/microbiología , ADN de Hongos/análisis , Femenino , Hongos/genética , Humanos , Masculino , Metagenómica , Persona de Mediana Edad , Nasofaringe/virología , Pandemias , Alta del Paciente , Neumonía/microbiología , SARS-CoV-2 , Factores de Tiempo , Adulto Joven
2.
Gastroenterology ; 159(3): 944-955.e8, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32442562

RESUMEN

BACKGROUND & AIMS: Although severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infects gastrointestinal tissues, little is known about the roles of gut commensal microbes in susceptibility to and severity of infection. We investigated changes in fecal microbiomes of patients with SARS-CoV-2 infection during hospitalization and associations with severity and fecal shedding of virus. METHODS: We performed shotgun metagenomic sequencing analyses of fecal samples from 15 patients with Coronavirus Disease 2019 (COVID-19) in Hong Kong, from February 5 through March 17, 2020. Fecal samples were collected 2 or 3 times per week from time of hospitalization until discharge; disease was categorized as mild (no radiographic evidence of pneumonia), moderate (pneumonia was present), severe (respiratory rate ≥30/min, or oxygen saturation ≤93% when breathing ambient air), or critical (respiratory failure requiring mechanical ventilation, shock, or organ failure requiring intensive care). We compared microbiome data with those from 6 subjects with community-acquired pneumonia and 15 healthy individuals (controls). We assessed gut microbiome profiles in association with disease severity and changes in fecal shedding of SARS-CoV-2. RESULTS: Patients with COVID-19 had significant alterations in fecal microbiomes compared with controls, characterized by enrichment of opportunistic pathogens and depletion of beneficial commensals, at time of hospitalization and at all timepoints during hospitalization. Depleted symbionts and gut dysbiosis persisted even after clearance of SARS-CoV-2 (determined from throat swabs) and resolution of respiratory symptoms. The baseline abundance of Coprobacillus, Clostridium ramosum, and Clostridium hathewayi correlated with COVID-19 severity; there was an inverse correlation between abundance of Faecalibacterium prausnitzii (an anti-inflammatory bacterium) and disease severity. Over the course of hospitalization, Bacteroides dorei, Bacteroides thetaiotaomicron, Bacteroides massiliensis, and Bacteroides ovatus, which downregulate expression of angiotensin-converting enzyme 2 (ACE2) in murine gut, correlated inversely with SARS-CoV-2 load in fecal samples from patients. CONCLUSIONS: In a pilot study of 15 patients with COVID-19, we found persistent alterations in the fecal microbiome during the time of hospitalization, compared with controls. Fecal microbiota alterations were associated with fecal levels of SARS-CoV-2 and COVID-19 severity. Strategies to alter the intestinal microbiota might reduce disease severity.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/microbiología , Disbiosis/virología , Heces/microbiología , Microbioma Gastrointestinal/genética , Neumonía Viral/microbiología , Adulto , Anciano , COVID-19 , Femenino , Tracto Gastrointestinal/microbiología , Hong Kong/epidemiología , Hospitalización/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Pandemias , Proyectos Piloto , SARS-CoV-2
3.
J Infect Dis ; 222(10): 1612-1619, 2020 10 13.
Artículo en Inglés | MEDLINE | ID: mdl-32738137

RESUMEN

BACKGROUND: Self-collected specimens have been advocated to avoid infectious exposure to healthcare workers. Self-induced sputum in those with a productive cough and saliva in those without a productive cough have been proposed, but sensitivity remains uncertain. METHODS: We performed a prospective study in 2 regional hospitals in Hong Kong. RESULTS: We prospectively examined 563 serial samples collected during the virus shedding periods of 50 patients: 150 deep throat saliva (DTS), 309 pooled-nasopharyngeal (NP) and throat swabs, and 104 sputum. Deep throat saliva had the lowest overall reverse-transcriptase polymerase chain reaction (RT-PCR)-positive rate (68.7% vs 89.4% [sputum] and 80.9% [pooled NP and throat swabs]) and the lowest viral ribonucleic acid (RNA) concentration (mean log copy/mL 3.54 vs 5.03 [sputum] and 4.63 [pooled NP and throat swabs]). Analyses with respect to time from symptom onset and severity also revealed similar results. Virus yields of DTS correlated with that of sputum (Pearson correlation index 0.76; 95% confidence interval, 0.62-0.86). We estimated that the overall false-negative rate of DTS could be as high as 31.3% and increased 2.7 times among patients without sputum. CONCLUSIONS: Deep throat saliva produced the lowest viral RNA concentration and RT-PCR-positive rate compared with conventional respiratory specimens in all phases of illness. Self-collected sputum should be the choice for patients with sputum.


Asunto(s)
Betacoronavirus/genética , Técnicas de Laboratorio Clínico , Infecciones por Coronavirus/diagnóstico , Infecciones por Coronavirus/epidemiología , Nasofaringe/virología , Neumonía Viral/diagnóstico , Neumonía Viral/epidemiología , Saliva/virología , Esputo/virología , Adolescente , Adulto , Anciano , COVID-19 , Prueba de COVID-19 , Vacunas contra la COVID-19 , Técnicas de Laboratorio Clínico/métodos , Infecciones por Coronavirus/virología , Femenino , Hong Kong/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Pandemias , Neumonía Viral/virología , Estudios Prospectivos , ARN Viral/genética , Reacción en Cadena en Tiempo Real de la Polimerasa , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , SARS-CoV-2 , Manejo de Especímenes/métodos , Adulto Joven
4.
Hong Kong Med J ; 21(3): 272-5, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26045070

RESUMEN

Psittacosis is a zoonotic disease caused by Chlamydophila psittaci. The most common presentation is atypical pneumonia. Three cases of pneumonia of varying severity due to psittacosis are described. All patients had a history of avian contact. The diagnosis was confirmed by molecular detection of Chlamydophila psittaci in respiratory specimens. The cases showed good recovery with doxycycline treatment. Increased awareness of psittacosis can shorten diagnostic delay and improve patient outcomes.


Asunto(s)
Neumonía por Clamidia/microbiología , Chlamydophila psittaci/aislamiento & purificación , Adulto , Neumonía por Clamidia/diagnóstico , Femenino , Humanos , Masculino , Persona de Mediana Edad
5.
Clin Infect Dis ; 57(7): 981-91, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23825355

RESUMEN

BACKGROUND: We report the first series of Mycobacterium abscessus bacteremia after cytokine-induced killer cell therapy for body beautification and health boosting. METHODS: The clinical manifestations, laboratory and radiological investigations, cytokine/chemokine profiles, and outcomes were described and analyzed. RESULTS: Four patients were admitted, and 3 patients had septic shock. Chest radiographs showed pulmonary infiltrates in all patients. Three patients developed peripheral gangrene, and 1 patient required lower limb and finger amputations. Patient 1 also developed disseminated infection including meningitis and urinary tract infection. Postmortem examination of patient 1 showed focal areas of pulmonary hemorrhage and diffuse alveolar damage, splenic infarct, adrenal necrosis, and hemorrhage, and acid-fast bacilli (AFB) were seen in the lung, liver, kidney, and adrenal gland. Patient 2 developed inguinal granulomatous lymphadenitis about 40 days after onset of lower limb gangrene. Wedge-shaped pulmonary infarcts were found in patient 3, and retinitis and subcutaneous lesions developed in patient 4. Patients in septic shock had dysregulated cytokine/chemokine profiles. Patient 4 with relatively milder presentation had increasing levels of interleukin 17 and cytokines in the interferon-γ/interleukin 12 pathway. All survivors required prolonged intravenous antibiotics. Blood cultures grew M. abscessus for all patients, and admission peripheral blood smear revealed AFB for 3 patients. Mycobacterium abscessus was also isolated from respiratory specimens (2 patients), urine (1 patient), and cerebrospinal fluid (1 patient). Time to initial blood culture positivity (patients 1, 2, and 3: ≤52 hours; patient 4: 83 hours) appeared to correlate with disease severity. CONCLUSIONS: Empirical coverage for rapidly growing mycobacteria should be considered in patients with sepsis following cosmetic procedures.


Asunto(s)
Bacteriemia/inmunología , Técnicas Cosméticas/efectos adversos , Células Asesinas Inducidas por Citocinas/inmunología , Inmunoterapia Adoptiva/efectos adversos , Infecciones por Mycobacterium no Tuberculosas/inmunología , Micobacterias no Tuberculosas/inmunología , Antibacterianos/uso terapéutico , Bacteriemia/microbiología , Resultado Fatal , Femenino , Gangrena/inmunología , Gangrena/microbiología , Hospitalización , Humanos , Persona de Mediana Edad , Infecciones por Mycobacterium no Tuberculosas/microbiología
6.
Commun Med (Lond) ; 2: 53, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35603297

RESUMEN

Background: The adaptive immune responses of COVID-19 patients contributes to virus clearance, restoration of health and protection from re-infection. The patterns of and the associated characteristics with longitudinal neutralising antibody (NAb) response following SARS-CoV-2 infection are important in their potential association with the population risks of re-infection. Methods: This is a longitudinal study with blood samples and clinical data collected in adults aged 18 or above following diagnosis of SARS-CoV-2 infection. NAb levels were measured by the SARS-CoV-2 surrogate virus neutralisation test (sVNT). Anonymous clinical and laboratory data were matched with surveillance data for each subject for enabling analyses and applying latent class mixed models for trajectory delineation. Logistic regression models were performed to compare the characteristics between the identified classes. Results: In 2020-2021, 368 convalescent patients in Hong Kong are tested for NAb. Their seroconversion occur within 3 months in 97% symptomatic patients, the level of which are maintained at 97% after 9 months. The NAb trajectories of 200 symptomatic patients are classified by the initial response and subsequent trend into high-persistent and waning classes in latent class mixed models. High-persistent (15.5%) class patients are older and most have chronic illnesses. Waning class patients (84.5%) are largely young adults who are mildly symptomatic including 2 who serorevert after 10 months. Conclusions: Characteristic sub-class variabilities in clinical pattern are noted especially among patients with waning NAb. The heterogeneity of the NAb trajectory patterns and their clinical association can be important for informing vaccination strategy to prevent re-infection.

7.
Front Allergy ; 3: 974138, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36133403

RESUMEN

Introduction: Penicillin allergy testing has been traditionally performed by allergists, but there remains a huge deficit of specialists. A multidisciplinary effort with nonallergists would be invaluable to overcome the magnitude of penicillin allergy labels via the Hong Kong Drug Allergy Delabelling Initiative (HK-DADI). These consensus statements (CSs) offer recommendations and guidance to enable nonallergists to screen for low-risk (LR) patients and perform penicillin allergy testing. Methods: CSs were formulated by the HK-DADI Group using the Delphi method. An agreement was defined as greater than or equal to 80% consensus. Results: A total of 26 CSs reached consensus after multiple rounds of Delphi. CSs were categorized into risk assessment, skin testing, drug provocation testing (DPT), and post-testing management. For risk assessment, the essentials of allergy history and exclusion criteria were detailed. Patients with only LR features can proceed with testing by nonallergists. Skin tests should be performed prior to DPT. Details regarding the timing, preparation, and interpretation of skin tests were elaborated. DPT remains the gold standard to diagnose genuine allergy or tolerance and should be performed when there is a low pretest probability following negative skin testing. Details of DPT preparations, dosing protocols, and interpretation were elaborated. For post-testing management, inaccurate allergy labels should be delabeled following negative DPT with proper patient counseling. Conclusion: CSs support penicillin allergy testing by nonallergists in Hong Kong. LR cases can be managed by nonallergists at Spoke Clinics, with training and support of an allergist-led Hub.

8.
Front Immunol ; 12: 763292, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34938289

RESUMEN

The cytokine release syndrome has been proposed as the driver of inflammation in coronavirus disease 2019 (COVID-19). However, studies on longitudinal cytokine profiles in patients across the whole severity spectrum of COVID-19 are lacking. In this prospective observational study on adult COVID-19 patients admitted to two Hong Kong public hospitals, cytokine profiling was performed on blood samples taken during early phase (within 7 days of symptom onset) and late phase (8 to 12 days of symptom onset). The primary objective was to evaluate the difference in early and late cytokine profiles among patient groups with different disease severity. The secondary objective was to assess the associations between cytokines and clinical endpoints in critically ill patients. A total of 40 adult patients (mild = 8, moderate = 15, severe/critical = 17) hospitalized with COVID-19 were included in this study. We found 22 cytokines which were correlated with disease severity, as proinflammatory Th1-related cytokines (interleukin (IL)-18, interferon-induced protein-10 (IP-10), monokine-induced by gamma interferon (MIG), and IL-10) and ARDS-associated cytokines (IL-6, monocyte chemoattractant protein-1 (MCP-1), interleukin-1 receptor antagonist (IL-1RA), and IL-8) were progressively elevated with increasing disease severity. Furthermore, 11 cytokines were consistently different in both early and late phases, including seven (growth-regulated oncogene-alpha (GRO-α), IL-1RA, IL-6, IL-8, IL-10, IP-10, and MIG) that increased and four (FGF-2, IL-5, macrophage-derived chemokine (MDC), and MIP-1α) that decreased from mild to severe/critical patients. IL-8, followed by IP-10 and MDC were the best performing early biomarkers to predict disease severity. Among critically ill patients, MCP-1 predicted the duration of mechanical ventilation, highest norepinephrine dose administered, and length of intensive care stay.


Asunto(s)
Biomarcadores/sangre , COVID-19/inmunología , Citocinas/sangre , Adulto , Anciano , COVID-19/sangre , Citocinas/inmunología , Femenino , Hong Kong , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , SARS-CoV-2 , Índice de Severidad de la Enfermedad
9.
Microbiome ; 9(1): 91, 2021 04 14.
Artículo en Inglés | MEDLINE | ID: mdl-33853691

RESUMEN

BACKGROUND: Coronavirus disease 2019 (COVID-19) caused by the enveloped RNA virus SARS-CoV-2 primarily affects the respiratory and gastrointestinal tracts. SARS-CoV-2 was isolated from fecal samples, and active viral replication was reported in human intestinal cells. The human gut also harbors an enormous amount of resident viruses (collectively known as the virome) that play a role in regulating host immunity and disease pathophysiology. Understanding gut virome perturbation that underlies SARS-CoV-2 infection and severity is an unmet need. METHODS: We enrolled 98 COVID-19 patients with varying disease severity (3 asymptomatic, 53 mild, 34 moderate, 5 severe, 3 critical) and 78 non-COVID-19 controls matched for gender and co-morbidities. All subjects had fecal specimens sampled at inclusion. Blood specimens were collected for COVID-19 patients at admission to test for inflammatory markers and white cell counts. Among COVID-19 cases, 37 (38%) patients had serial fecal samples collected 2 to 3 times per week from time of hospitalization until after discharge. Using shotgun metagenomics sequencing, we sequenced and profiled the fecal RNA and DNA virome. We investigated alterations and longitudinal dynamics of the gut virome in association with disease severity and blood parameters. RESULTS: Patients with COVID-19 showed underrepresentation of Pepper mild mottle virus (RNA virus) and multiple bacteriophage lineages (DNA viruses) and enrichment of environment-derived eukaryotic DNA viruses in fecal samples, compared to non-COVID-19 subjects. Such gut virome alterations persisted up to 30 days after disease resolution. Fecal virome in SARS-CoV-2 infection harbored more stress-, inflammation-, and virulence-associated gene encoding capacities including those pertaining to bacteriophage integration, DNA repair, and metabolism and virulence associated with their bacterial host. Baseline fecal abundance of 10 virus species (1 RNA virus, pepper chlorotic spot virus, and 9 DNA virus species) inversely correlated with disease COVID-19 severity. These viruses inversely correlated with blood levels of pro-inflammatory proteins, white cells, and neutrophils. Among the 10 COVID-19 severity-associated DNA virus species, 4 showed inverse correlation with age; 5 showed persistent lower abundance both during disease course and after disease resolution relative to non-COVID-19 subjects. CONCLUSIONS: Both enteric RNA and DNA virome in COVID-19 patients were different from non-COVID-19 subjects, which persisted after disease resolution of COVID-19. Gut virome may calibrate host immunity and regulate severity to SARS-CoV-2 infection. Our observation that gut viruses inversely correlated with both severity of COVID-19 and host age may partly explain that older subjects are prone to severe and worse COVID-19 outcomes. Altogether, our data highlight the importance of human gut virome in severity and potentially therapeutics of COVID-19. Video Abstract.


Asunto(s)
COVID-19 , Microbioma Gastrointestinal , Preescolar , ADN , Microbioma Gastrointestinal/genética , Humanos , ARN , SARS-CoV-2 , Viroma
10.
Laryngoscope ; 130(11): 2680-2685, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32794209

RESUMEN

OBJECTIVES/HYPOTHESIS: This study investigated olfactory and gustatory dysfunction in the 2020 novel coronavirus disease (COVID-19) patients, and their correlations with viral load evaluation. STUDY DESIGN: Prospective cross-sectional cohort study. METHODS: One hundred forty-three symptomatic patients being screened for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were invited to participate. The clinical data of 83 confirmed COVID-19 subjects were collected, with 60 patients who were symptomatic but negative for COVID-19 recruited as controls. The prevalence and severity of and recovery time for olfactory and gustatory dysfunction, and cycle threshold (Ct) values from a SARS-CoV-2 polymerase chain reaction assay of nasopharyngeal and deep throat swabs were collected. Their correlations with Ct values were reported. RESULTS: Thirty-nine (47.0%) and 36 (43.4%) COVID-19 patients reported olfactory and gustatory dysfunction, respectively. The results of one-way analysis of variance did not show statistically significant relationships between the Ct values and severity of olfactory and gustatory dysfunction (P = .780 and P = .121, respectively). Among the COVID-19 patients who reported smell and taste loss, 28/39 (71.8%) and 30/36 (83.3%) experienced complete recovery, respectively. The mean recovery time was 10.3 ± 8.1 days for olfactory dysfunction and 9.5 ± 6.8 days for gustatory dysfunction. The recovery time was not correlated with the Ct values (Pearson correlation coefficient, smell: -0.008, P = .968; taste: -0.015, P = .940). CONCLUSIONS: There is a high prevalence of olfactory and gustatory dysfunction in COVID-19. However, the severity of and recovery from these symptoms have no correlations with the viral load of SARS-CoV-2. LEVEL OF EVIDENCE: 4 Laryngoscope, 130:2680-2685, 2020.


Asunto(s)
COVID-19/virología , Trastornos del Olfato/epidemiología , SARS-CoV-2 , Trastornos del Gusto/epidemiología , Carga Viral , Adolescente , Adulto , Anciano , COVID-19/complicaciones , Estudios Transversales , Femenino , Hong Kong/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Trastornos del Olfato/virología , Prevalencia , Pronóstico , Estudios Prospectivos , Índice de Severidad de la Enfermedad , Trastornos del Gusto/virología , Adulto Joven
11.
Trop Med Infect Dis ; 3(3)2018 Aug 25.
Artículo en Inglés | MEDLINE | ID: mdl-30274487

RESUMEN

Melioidosis, although endemic in many parts of Southeast Asia, has not been systematically studied in Hong Kong, which is a predominantly urban area located in the subtropics. This review describes the early outbreaks of melioidosis in captive animals in Hong Kong in the 1970s, as well as the early reports of human clinical cases in the 1980s. A review of all hospitalized human cases of culture-confirmed melioidosis in the last twenty years showed an increasing trend in the incidence of the disease, with significant mortality observed. The lack of awareness of this disease among local physicians, the delay in laboratory diagnosis and the lack of epidemiological surveillance are among the greatest challenges of managing melioidosis in the territory.

15.
J Nerv Ment Dis ; 192(12): 868-71, 2004 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-15583510

RESUMEN

This study aimed to examine the short-term adjustment outcomes including distress, self-esteem, and quality of life among Chinese patients after 1-month recovery from severe acute respiratory syndrome (SARS) in Hong Kong and to investigate the predictive abilities of a set of selected variables on the outcomes. At 1-month recovery, 100 SARS survivors (mean age = 37; 66 women) and 184 community subjects completed self-administered questionnaires. In the General Health Questionnaire-28, 61% of the SARS survivors were identified as distressed cases under a conservative cutoff score of 6. Compared with the community sample, SARS survivors had significantly more distress and poor quality of life. Being a healthcare worker, severity of SARS symptoms, steroid dosage, and social support accounted for a portion of variances of different measures. Early psychiatric screening and intervention may be beneficial for the adjustment of SARS survivors after short-term recovery. Future research on the long-term impact of SARS is recommended.


Asunto(s)
Adaptación Psicológica , Convalecencia/psicología , Estado de Salud , Síndrome Respiratorio Agudo Grave/psicología , Ajuste Social , Adolescente , Adulto , Anciano , Femenino , Personal de Salud/psicología , Personal de Salud/estadística & datos numéricos , Hong Kong/etnología , Humanos , Masculino , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Inventario de Personalidad/estadística & datos numéricos , Calidad de Vida , Autoimagen , Síndrome Respiratorio Agudo Grave/diagnóstico , Síndrome Respiratorio Agudo Grave/etnología , Índice de Severidad de la Enfermedad , Estrés Psicológico/diagnóstico , Estrés Psicológico/psicología , Encuestas y Cuestionarios , Sobrevivientes/clasificación , Sobrevivientes/psicología
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