Publications de Anna Carratala Ripolles

Vertical distribution and seasonal dynamics of planktonic cyanobacteria communities in a water column of deep mesotrophic Lake Geneva

Tamar Kohn, Stéphane Joost, Anna Carratala Ripolles, Oliver Michele Selmoni, Charlotte Gisèle Weil, Hannah Elisa Chmiel, Annie Sandrine Guillaume, Coralie Chappelier

Background: Temperate subalpine lakes recovering from eutrophication in central Europe are experiencing harmful blooms due to the proliferation of Planktothrix rubescens, a potentially toxic cyanobacteria. To optimize the management of cyanobacteria blooms ...

2023

Control of Waterborne Human Viruses by Indigenous Bacteria and Protists Is Influenced by Temperature, Virus Type, and Microbial Species

Tamar Kohn, Anna Carratala Ripolles, Margot Ninon Lauren Olive

Human viruses are ubiquitous contaminants in surface waters, where they can persist over extended periods of time. Among the factors governing their environmental persistence, the control (removal or inactivation) by microorganisms remains poorly understoo ...

2020

Adaptation of Human Enterovirus to Warm Environments Leads to Resistance against Chlorine Disinfection

Tamar Kohn, Anna Carratala Ripolles, Virginie Bachmann, Timothy R. Julian

Sunlight, temperature, and microbial grazing are among the environmental factors promoting the inactivation of viral pathogens in surface waters. Globally, these factors vary across time and space. The persistence of viral pathogens, and ultimately their e ...

2020

Microorganisms from surface waters contribute to the inactivation of human echovirus 11: toward biocontrol of viral pathogens?

Tamar Kohn, Anna Carratala Ripolles, Margot Ninon Lauren Olive

Human viruses are widespread as contaminants in surface waters and represent a significant health risk. Viral pathogens can persist in aquatic ecosystems and cause infections via contaminated water or food. Among the different factors governing the environ ...

2019

Adaptation of waterborne echovirus to warm habitats enhances disinfection resistance

Tamar Kohn, Anna Carratala Ripolles, Virginie Bachmann

Because of their high mutation rate, enteric virus populations excreted from a host are not clonal, but rather consist of a mutant cloud with many different genetic variants. Among these variants, the susceptibility to environmental stressors (e.g., temper ...

2019

Community-Level Responses to Iron Availability in Open Ocean Plankton Ecosystems

Anna Carratala Ripolles

Predicting responses of plankton to variations in essential nutrients is hampered by limited in situ measurements, a poor understanding of community composition, and the lack of reference gene catalogs for key taxa. Iron is a key driver of plankton dynamic ...

AMER GEOPHYSICAL UNION2019

Population density and water balance influence the global occurrence of hepatitis E epidemics

Stéphane Joost, Anna Carratala Ripolles

In developing countries, the waterborne transmission of hepatitis E virus (HEV), caused by HEV genotypes 1 (HEV-1) and 2 (HEV-2), leads to the onset of large recurrent outbreaks. HEV infections are of particular concern among pregnant women, due to very hi ...

2019

Population density and water balance influence the global occurrence of hepatitis E epidemics

Stéphane Joost, Anna Carratala Ripolles

In developing countries, the waterborne transmission of hepatitis E virus (HEV), particularly the genotypes 1 and 2, leads to the onset of large recurrent outbreaks. In order to identify the geographical regions at higher risk of HEV epidemics and the cond ...

2018

Cross-resistance of UV- or chlorine dioxide-resistant echovirus 11 to other disinfectants

Tamar Kohn, Anna Carratala Ripolles, Virginie Bachmann, Qingxia Zhong, Rachele Ossola

The emergence of waterborne viruses with resistance to disinfection has been demonstrated in the laboratory and in the environment. Yet, the implications of such resistance for virus control remain obscure. In this study we investigate if viruses with resi ...

Frontiers Research Foundation2017

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