ABSTRACT
Objective: To estimate COVID-19 seropositivity among contacts of cases and to compare the seropositivity among different types of contact for assessing the differential risk & transmission dynamics. Material and Methods: A large-scale population-based serosurvey was carried out among the general population of Ahmedabad during the second half of October 2020. The contacts of cases were selected based on the population proportion and enrolled as an additional category. The seropositivity among the contacts was estimated using the enzyme-linked immunosorbent assay and compared with different types of contact and available demographic factors. Results: As of October 2020, the seropositivity against Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV2) among contacts of cases in Ahmedabad was 26.0% [95% confidence interval 24.2–28.0]. The seropositivity among family contacts was significantly higher (28.8%) compared to other contacts (24.4%) (Z=2.19, p-value=0.028). This trend was seen across all age groups and both sexes. The seropositivity was higher among females (27.7%) compared to males (24.5%) but the difference was statistically not significant (Z=1.64, p-value=0.101). In terms of age groups, the positivity had an increasing trend up to 60 years but declined after that. Conclusion: A seropositivity of 26.0% among contacts indicates that a large proportion of contacts demonstrated Immunoglobulin-G antibodies. This highlights asymptomatic transmission and/or low sensitivity of the diagnostic tests. The current strategy for contact tracing and testing among contacts is justified based on the significantly higher seropositiviamong family contacts. © 2021 JHSMR.
ABSTRACT
Purpose: The purpose of this paper is to articulate the impact of COVID-19 on marketing. It will shift from “physical first” to “digital first,” and from “selling to serving” the customers. This will impact all 4 Ps of marketing, as well as branding and innovation. Design/methodology/approach: It is a conceptual paper based on literature review. The underlying construct used is transaction cost economics (TCE). Findings: Using TCE, the paper finds that both consumers and marketers are very willing to shift to e-commerce and digital platforms which are both convenient, as well as cost-effective. Also, customer support organization will become a strategic advantage in interactive marketing. Originality/value: This is an original paper written specifically for the special issue on the post-pandemic shock. © 2021, Emerald Publishing Limited.
ABSTRACT
Aim: Virtual consultation (VC) became the new norm for providing outpatient clinics during the COVID-19 pandemic. This is likely to be adopted in some form going forward. This study prospectively evaluated the effectiveness&safety of VC undertaken at a UK tertiary paediatric surgical centre during the pandemic. Method: Data on paediatric surgery/urology outpatient video/telephone consultations between May-June 2020 was prospectively collected. VC episodes were given outcomes (1,2or3) depending how well surgeons were able to make definitive diagnoses/plans. 6months later, findings at later face-to-face visit were retrospectively compared with earlier VC to assess accuracy of decision-making using VC. Telephone survey of patient experience was done. Results: 186VC were evaluated. 95 (51%) were paediatric general surgical patients and 91 (49%) urology. 118 (63%) were follow-ups and 68 (37%) new. In 70% of cases, clinicians were able to make definitive diagnosis/ plan using VC (outcome1) while 26% could be delayed till face-toface consultation is safe (outcome2). 7 patients (4%) needed to be brought in urgently (outcome3). Clinicians were significantly more able to make definitive diagnosis/plan in urology and follow-up patients. Of those brought back for scheduled follow-up/surgery, there was 93% correlation between findings at physical consultation compared to the definitive plans made at VC. Patient survey showed 92% overall satisfaction rate. 75% felt VC is comparable to face-to-face/would use VC again. Conclusions: This study provides evidence that VC is an effective&safe way to structure paediatric surgical outpatient care and it highlights the patient categories in which VC is most suitable.
ABSTRACT
Background: Serosurveillance study focusing on antibodies against SARS-CoV2 among the Covid19 cases can add value in the scientific knowledge & help in formulating valid predictions regarding immunity status in the post-covid period. Objectives: To estimate seropositivity among covid19 cases and to identify various factors affecting seropositivity. Methods: During second half of October 2020, a population based serosurvey on Covid19 cases was carried out in Ahmedabad. Covid-Kavach test kits were used and estimated seroprevalence was compared with available demographic and covid19 case related parameters to identify factors affecting seropositivity in the post-covid period. Simple proportions and Z-test were used as appropriate. Results: As on October 2020, the sero-positivity among Covid19 cases in Ahmedabad was 54.51% [95% Confidence Interval (CI) 52.14-56.86%]. Females have higher positivity (54.78%) as compared to males (54.30%) but the difference was statistically not significant (Z=0.19, P=0.84). Among children and elderly, the positivity is high and from young adults to elderly the seropositivity has an increasing trend. Severity of clinical illness and longer duration of hospitalization are associated with higher seropositivity. Conclusion: With 54.51% seropositivity among covid19 cases, it is clear that all the covid19 cases may not have developed IgG antibodies, have undetectable level or might have disappeared during the post-covid period. Comparison of seropositivity with age group and clinical case details clearly suggest close correlation with the severity of clinical symptoms. The seronegative cases indicate the need for further in-depth scientific research to identify the factors affecting immunity and to uncover the reasons behind the same. © 2021, Indian Association of Preventive and Social Medicine. All rights reserved.
ABSTRACT
Introduction: Serological surveys estimating the cumulative incidence of the disease are powerful and effective tools for monitoring the epidemic and in determining the immunity status. Objectives: To compare the percentage sero-positivity for IgG antibodies against SARS-CoV2 at two different time period in the same population to understand the pandemic and predict about the immunity status of the population.