‘With agroecology, we can defend ourselves': examining campesino resilience and economic solidarity during pandemic-era economic shock in Guatemala

The global spread of Covid-19 led to travel and market restrictions that impacted Guatemala's rural food systems. This distinct economic shock directly affected campesinos, or small-scale farmers who depend on subsistence and commercial food production. Some Guatemalan farmer organizations have been promoting agroecology for decades in efforts to strengthen rural livelihoods and food sovereignty, defend Indigenous rights, and adapt to climate change, and agroecology is positioned as a tool for resilience to various shocks. We consider the neoliberal cooptation of the concept of resilience, and its usefulness in preserving alternative and previous (Indigenous) practices. Data from surveys and semi-structured interviews with farmers and leaders at eight organizations that promote agroecology suggests that prior engagement with a farmer organization, enacted through both agroecological practices and social networks, contributes to campesino resilience to the pandemic's economic shock at the farm level, with regards to production and consumption. This study illustrates the range and diversity of strategies taken up by campesinos during the pandemic, and considers the importance of social networks for collective actions that increase current and future economic solidarity in campesino communities.

‘With agroecology, we can defend ourselves’: examining campesino resilience and economic solidarity during pandemic-era economic shock in Guatemala

The global spread of Covid-19 led to travel and market restrictions that impacted Guatemala’s rural food systems. This distinct economic shock directly affected campesinos, or small-scale farmers who depend on subsistence and commercial food production. Some Guatemalan farmer organizations have been promoting agroecology for decades in efforts to strengthen rural livelihoods and food sovereignty, defend Indigenous rights, and adapt to climate change, and agroecology is positioned as a tool for resilience to various shocks. We consider the neoliberal cooptation of the concept of resilience, and its usefulness in preserving alternative and previous (Indigenous) practices. Data from surveys and semi-structured interviews with farmers and leaders at eight organizations that promote agroecology suggests that prior engagement with a farmer organization, enacted through both agroecological practices and social networks, contributes to campesino resilience to the pandemic’s economic shock at the farm level, with regards to production and consumption. This study illustrates the range and diversity of strategies taken up by campesinos during the pandemic, and considers the importance of social networks for collective actions that increase current and future economic solidarity in campesino communities. [ FROM AUTHOR]

Longitudinal assessment of SARS-CoV-2 IgG seroconversionamong front-line healthcare workers during the first wave of the Covid-19 pandemic at a tertiary-care hospital in Chile.

BACKGROUND: Healthcare workers (HCWs) are at high risk of exposure to SARS-CoV-2. Cross-sectional studies have provided variable rates of seroprevalence in HCWs. Longitudinal assessments of the serological response to Covid-19 among HCWs are crucial to understanding the risk of infection and changes in antibody titers over time. We aimed to investigate seroprevalence and risk factors associated with seroconversion in a prospective cohort of HCWs during the peak of the first wave of the Covid-19 pandemic. METHODS: We conducted a longitudinal study among 446 front-line HCWsin a tertiary-care hospital in Chile from April to July 2020. IgG was determined monthly using two different ELISAs in serum samples of HCWs, during the three-month period. In each visit, demographic data, symptoms, risk factors, and exposure risks were also assessed. RESULTS: The overall seroprevalence at the end of the study period was 24% (95% CI20.2-28.3), with 43% of seropositive HCWs reporting no prior symptoms. Seroconversion rates significantly differed over the study period, from 2.1% to as high as 8.8% at the peak of the epidemic. There were no statistically significant differences observed between HCWs in direct clinical care of patients with Covid-19 and those working in low risk areas. Antibody titers appeared to wane over time. CONCLUSIONS: HCWs were severely affected with a high rate of seroconversion that appeared to mirror the local epidemiological situation. A significant amount of participants underwent an asymptomatic infection, highlighting the need for improved surveillance policies. Antibody titers appear to wane over time; further studies to understand this finding's impact on the risk of reinfection are warranted.

Several lineages of porcine epidemic diarrhea virus in Colombia during the 2014 and 2016 epidemic.

Porcine epidemic diarrhea virus (PEDV) is a significant global, enteric coronavirus in pigs and was first reported in Colombia in 2014. However, the epidemiology, genetic and antigenic characteristics of the virus have yet to be investigated. In this study, we investigated the dissemination of PEDV by testing 536 samples by RT-PCR over a 33-month period. The 35.8% of positive samples (n = 192) was significantly different (p < .01) between months over time, with a higher number of positives samples occurring at the beginning of the epidemic and during the second epidemic wave within the main pork producing region. The complete PEDV genomes were generated for 21 strains, which shared a high nucleotide and amino acid sequence identity, except for the spike (S) gene. Recombinant regions were identified within the Colombian strains and between Colombian and Asian PEDV strains. Phylogenetic analysis of the 21 Colombian strains demonstrated the presence of 7 lineages that shared common ancestors with PEDV strains from the United States. Moreover, the antigenic analysis demonstrated residue differences in the neutralizing epitopes in the spike and nucleocapsid proteins. Our results illustrated the simultaneous introduction of the two PEDV genotypes (GIIa American pandemic and S-INDEL) into the Colombian swine industry during the 2014 PEDV epidemic and enhanced our understanding of the epidemiology and molecular diversity of PEDV in Colombia.