Las epidemias de cólera en Argentina. Breve reseña histórica / The cholera epidemics in Argentina. Brief historical review

El cólera es una toxoinfección alimentaria ocasionada por la ingesta de agua y alimentos contaminados por el Vibrio cholerae. Es una de las enfermedades más antiguas de la humanidad y las primeras descripciones corresponden a Hipócrates. La primera epidemia documentada, sucedió en la India en 1817 y se extendió a Turquía y a los países árabes. En nuestro país, el primer brote ocurrió en 1856 en la ciudad de Bahía Blanca, asociada a la llegada de navíos con enfermos y a las deficientes condiciones sanitarias de la ciudad. Los sucesivos brotes se acompañaron de una alta mortalidad, a tal punto que el Dr. José María Penna señaló que costó más vidas a la nación que la guerra con Paraguay. En el presente artículo se analizan los sucesivos brotes de cólera en nuestro país

Cholera is a food poisoning caused by the ingestion of food and water contaminated by Vibrio cholerae. It is one of the oldest diseases of humanity and the first descriptions correspond to Hippocrates. The first documented epidemic occurred in India in 1817 and spread to Turkey and the Arab countries. In our country, the first outbreak occurred in 1856 in the city of Bahía Blanca, associated with the arrival of ships with patients and poor sanitary conditions in the city. The successive outbreaks were accompanied by high mortality, to the point that Dr. José María Penna pointed out that it cost the nation more lives than the war with Paraguay. This article analyzes the successive outbreaks of cholera in our country

[Thomas Mann and the infectious diseases in the first half of 20th. century. Second part: Tuberculosis, cholera and transplants]. / Thomas Mann y las enfermedades infecciosas en la primera mitad del siglo XX. Parte II: Tuberculosis, cólera, trasplantes.

Surely Thomas Mann is today a forgotten writer, with only a little and selected group of readers between our young colleagues. However, perhaps could be useful for the others some knowledge about his vision of the infectious diseases in the first half of the twentieth century, when he wrote the novels here reviewed. Typhoid fever, meningitis, syphilis, tuberculosis and cholera are present in Mann's thematic from Buddenbrooks till Doktor Faustus, always with a personal focus, more on spirit -the will to live- rather than flesh and bones... or bacteria. One of his lasts and minor works let us throw an ironical glance over transplant, no so named, indeed, by Mann, who speaks of "exchange". In this second part we present tuberculosis, cholera and…transplant.

Thomas Mann y las enfermedades infecciosas en la primera mitad del siglo XX. Parte II: Tuberculosis, cólera, trasplantes / Thomas Mann and the infectious diseases in the first half of 20th. century: second part: tuberculosis, cholera and transplants

Resumen Con seguridad Thomas Mann es hoy en día un escritor olvidado, para los infectólogos y para todo el mundo, con apenas un selecto grupo de poquísimos lectores entre nuestros jóvenes colegas. No les hará mal, a éstos y a aquéllos, sin embargo, adquirir algún conocimiento de las ideas sobre las enfermedades infecciosas en la primera mitad del siglo XX, período en que Mann escribió las obras aquí comentadas: por el contrario puede resultarles particularmente útil si este conocimiento les llega a través de la visión muy personal del germano, quien pone el foco más en el espíritu -la voluntad, el alma en suma- que en el componente físico de la enfermedad, en la miseria corporal, ignorando de paso, desdeñosamente, a las bacterias causantes.

Surely Thomas Mann is today a forgotten writer, with only a little and selected group of readers between our young colleagues. However, perhaps could be useful for the others some knowledge about his vision of the infectious diseases in the first half of the twentieth century, when he wrote the novels here reviewed. Typhoid fever, meningitis, syphilis, tuberculosis and cholera are present in Mann's thematic from Buddenbrooks till Doktor Faustus, always with a personal focus, more on spirit -the will to live- rather than flesh and bones... or bacteria. One of his lasts and minor works let us throw an ironical glance over transplant, no so named, indeed, by Mann, who speaks of "exchange". In this second part we present tuberculosis, cholera and…transplant.

[Prophylactic representations, discourses and practices during the cholera epidemic (1886-1887, Mendoza, Argentina)]. / Representaciones, discursos y prácticas profilácticas durante la epidemia de cólera (1886-1887, Mendoza, Argentina).

The article takes a look into the disciplinary projects approved by the authorities in the province of Mendoza (Argentina) during the cholera epidemic that took place during the summer of 1886-1887. Although the projects were intended to ameliorate the sanitary conditions of the whole of the population, these were focused and applied more intensively on the underprivileged sectors and their areas of inhabitance. This follows the ideas and representations created by the State regarding the illness and its death during this period.

El artículo busca indagar en los proyectos de disciplinamiento sancionados por el Estado de la provincia de Mendoza (Argentina) durante la epidemia de cólera ocurrida en el verano de 1886 y 1887. Si bien los planes tenían como finalidad mejorar el estado sanitario de toda la población y de la ciudad, apuntaron y se aplicaron con mayor intensidad sobre los sectores populares y sus espacios. Esto se debió a las ideas y representaciones que en torno de la enfermedad y la muerte construyó el grupo dirigente durante estos periodos.

Representaciones, discursos y prácticas profilácticas durante la epidemia de cólera (1886-1887, Mendoza, Argentina) / Prophylactic representations, discourses and practices during the cholera epidemic (1886-1887, Mendoza, Argentina)

Resumen El artículo busca indagar en los proyectos de disciplinamiento sancionados por el Estado de la provincia de Mendoza (Argentina) durante la epidemia de cólera ocurrida en el verano de 1886 y 1887. Si bien los planes tenían como finalidad mejorar el estado sanitario de toda la población y de la ciudad, apuntaron y se aplicaron con mayor intensidad sobre los sectores populares y sus espacios. Esto se debió a las ideas y representaciones que en torno de la enfermedad y la muerte construyó el grupo dirigente durante estos periodos.

Abstract The article takes a look into the disciplinary projects approved by the authorities in the province of Mendoza (Argentina) during the cholera epidemic that took place during the summer of 1886-1887. Although the projects were intended to ameliorate the sanitary conditions of the whole of the population, these were focused and applied more intensively on the underprivileged sectors and their areas of inhabitance. This follows the ideas and representations created by the State regarding the illness and its death during this period.

Lugares, actitudes y momentos durante la peste: representaciones sobre la fiebre amarilla y el cólera en la ciudad de Buenos Aires, 1867-1871 / Places, attitudes and moments during the epidemics: representations of yellow fever and cholera in the city of Buenos Aires, 1867-1871

Resumen El objetivo de este trabajo es analizar las distintas representaciones que sobre la salud y la enfermedad se asociaron con las epidemias de fiebre amarilla y cólera durante el período 1867-1871 en la ciudad de Buenos Aires. El argumento es que existió un repertorio muy amplio y heterogéneo de representaciones que se condensó en variadas actitudes individuales con la cual se enfrentó la crisis, así como una transformación del espacio y del tiempo social. Para poder sobrellevar esta experiencia traumática se buscó de maneras muy diversas mantener un vínculo social que era también al mismo tiempo una forma de mantener la salud.

Abstract The goal of this article is to analyze the different representations of health and disease associated with the epidemics of yellow fever and cholera that took place from 1867-1871 in the city of Buenos Aires. It argues that there was a very broad and heterogeneous repertoire of representations that resulted in a variety of attitudes on the part of individuals dealing with the crisis, and led to the transformation of space and social time. In order to handle this traumatic experience, people chose very different methods for maintaining social contact, which was also a way of maintaining their health.

Characterization of Vibrio cholerae isolates from 1976 to 2013 in Shandong Province, China

Abstract Cholera continues to be a serious public health issue in developing countries. We analyzed the epidemiological data of cholera from 1976 to 2013 in Shandong Province, an eastern coastal area of China. A total of 250 Vibrio cholerae isolates were selected for PCR analysis of virulence genes and pulsed-field gel electrophoresis (PFGE). The analysis of the virulence genes showed that the positive rates for tcpA and tcpI were the highest among strains from the southwest region, which had the highest incidence rate of cholera. Low positive rates for tcpA, tcpI and ctxAB among isolates from after 2000 may be an influencing factor contributing to the contemporary decline in cholera incidence rates. Spatiotemporal serotype shifts (Ogawa, Inaba, Ogawa, Inaba and O139) generally correlated with the variations in the PFGE patterns (PIV, PIIIc, PIa, PIIIb, PIIIa, PIb, and PII). O1 strains from different years or regions also had similar PFGE patterns, while O139 strains exclusively formed one cluster and differed from all other O1 strains. These data indicate that V. cholerae isolates in Shandong Province have continually undergone spatiotemporal changes. The serotype switching between Ogawa and Inaba originated from indigenous strains, while the emergence of serogroup O139 appeared to be unrelated to endemic V. cholerae O1 strains.

Characterization of Vibrio cholerae isolates from 1976 to 2013 in Shandong Province, China.

Cholera continues to be a serious public health issue in developing countries. We analyzed the epidemiological data of cholera from 1976 to 2013 in Shandong Province, an eastern coastal area of China. A total of 250 Vibrio cholerae isolates were selected for PCR analysis of virulence genes and pulsed-field gel electrophoresis (PFGE). The analysis of the virulence genes showed that the positive rates for tcpA and tcpI were the highest among strains from the southwest region, which had the highest incidence rate of cholera. Low positive rates for tcpA, tcpI and ctxAB among isolates from after 2000 may be an influencing factor contributing to the contemporary decline in cholera incidence rates. Spatiotemporal serotype shifts (Ogawa, Inaba, Ogawa, Inaba and O139) generally correlated with the variations in the PFGE patterns (PIV, PIIIc, PIa, PIIIb, PIIIa, PIb, and PII). O1 strains from different years or regions also had similar PFGE patterns, while O139 strains exclusively formed one cluster and differed from all other O1 strains. These data indicate that V. cholerae isolates in Shandong Province have continually undergone spatiotemporal changes. The serotype switching between Ogawa and Inaba originated from indigenous strains, while the emergence of serogroup O139 appeared to be unrelated to endemic V. cholerae O1 strains.

Oral Cholera Vaccine Coverage, Barriers to Vaccination, and Adverse Events following Vaccination, Haiti, 2013.

In 2013, the first government-led oral cholera vaccination (OCV) campaign in Haiti was implemented in Petite Anse and Cerca Carvajal. To evaluate vaccination coverage, barriers to vaccination, and adverse events following vaccination, we conducted a cluster survey. We enrolled 1,121 persons from Petite Anse and 809 persons from Cerca Carvajal, categorized by 3 age groups (1-4, 5-14, >15 years). Two-dose OCV coverage was 62.5% in Petite Anse and 76.8% in Cerca Carvajal. Two-dose coverage was lowest among persons >15 years of age. In Cerca Carvajal, coverage was significantly lower for male than female respondents (69% vs. 85%; p<0.001). No major adverse events were reported. The main reason for nonvaccination was absence during the campaign. Vaccination coverage after this campaign was acceptable and comparable to that resulting from campaigns implemented by nongovernmental organizations. Future campaigns should be tailored to reach adults who are not available during daytime hours.

The controversial experiments on the intravenous administration of drugs (and air!) during the cholera epidemic of 1867 in Italy.

Cholera ravaged many American and European cities in the nineteenth century. Likewise, Italy was struck by six epidemics since the morbus first appeared in 1835-1837. After the International Sanitary Conferences held in Paris in 1851, there was a decrease of the cases due to consolidation of the city in terms of public and private health. Nevertheless, due to the lack of alternative and innovative remedies, the mortality remained unchanged, affecting more than 60 percent of patients. The city of Brescia in Northern Italy was severely hit by the epidemic of 1867. Not being able to implement effective therapeutic strategies, the administration of drugs like quinine and strychnine was proposed to be done intravenously. The results of intravenous injections were ominous, and all the patients died of "‘sudden death"’. Although the academic authorities forbade further experiments, some physicians carried on a long trial using test animals and mental patients as ‘"guinea pigs"’.

La epidemia de cólera de 1991 a través de los diarios limeños / The 1991 cholera epidemic through Lima newspapers

En 1991, los periódicos se ocuparon extensamente de la epidemia de cólera en Perú. Esta revisión muestra que la prensa escrita reforzó estereotipos respecto a los pobres y los migrantes provincianos como agentes de contagio de enfermedades y reprodujeron una idea común entre algunos sectores de clase media y alta de Lima de la época, según la cual los nuevos hábitos alimenticios y de vida que estaban introduciendo los migrantes en Lima generaban problemas de salud y epidemias.

In 1991, newspapers widely dealt with the epidemic of cholera in Peru. This review shows that the print media reinforced stereotypes regarding the poor and provincial migrants as agents of diseases and they reproduced a common idea among some sectors of middle and upper class of Lima at that time, according to which the new eating habits and lifestyle that migrants were entering Lima generating health problems and epidemics.

Household-level spatiotemporal patterns of incidence of cholera, Haiti, 2011.

A cholera outbreak began in Haiti during October, 2010. Spatiotemporal patterns of household-level cholera in Ouest Department showed that the initial clusters tended to follow major roadways; subsequent clusters occurred further inland. Our data highlight transmission pathway complexities and the need for case and household-level analysis to understand disease spread and optimize interventions.

[Epidemics in the news in Portugal: cholera, plague, typhus, influenza and smallpox, 1854-1918]. / As epidemias nas notícias em Portugal: cólera, peste, tifo, gripe e varíola, 1854-1918.

In severe health crisis like those of 1854-1856, 1899 and 1918, especially in Porto, where cholera morbus, the bubonic plague, typhus fever, pneumonic influenza and smallpox killed high percentages of the population, the images of the epidemics in the press enable us to identify the scientific knowledge in a country considered peripheral, but which had studies and personnel specialized at the most advanced levels for the time. A database of 6,700 news items and announcements reveals the medical and pharmaceutical knowledge of the second half of the nineteenth and early twentieth centuries, the way it was transmitted and disclosed to the public and the solutions offered by the health authorities. Hygiene was consistently highlighted in the news and announcements.

John Snow and cholera--the bicentenary of birth.

The bicentenary of John Snow's birth, a legend in his field, for his research on epidemiology and the prevention ofcholera, constitutes a unique opportunity to commemorate this iconic figure. In the article, his spectacular achievements in this discipline are presented, including his epidemiological investigation during cholera epidemic and the well-known Broad Street intervention in Soho, in 1854, as well as his methodologically elegant experiment "on the grandest scale" in which he compared the cholera fatality rates in households served by two different water supply companies. Having referred to Snow's research, the cholera outbreak in Haiti in 2010 is also discussed.

As epidemias nas notícias em Portugal: cólera, peste, tifo, gripe e varíola, 1854-1918 / Epidemics in the news in Portugal: cholera, plague, typhus, influenza and smallpox, 1854-1918

Em períodos de crise sanitária grave como os de 1854-1856, 1899 e 1918, especialmente no Porto, onde cólera-morbo, peste bubónica, tifo exantemático, gripe pneumónica e varíola mataram percentagens elevadas da população, as imagens das epidemias na imprensa permitem-nos identificar os conhecimentos científicos num país considerado periférico, mas que dispunha de estudos e pessoal especializado no nível dos mais avançados da época. Uma base de dados de 6.700 notícias, artigos e anúncios revela-nos o conhecimento médico e farmacêutico da segunda metade do século XIX e início do XX, o modo como era transmitido e divulgado ao público e as soluções apresentadas pelas autoridades sanitárias. Um fator foi sempre salientado nas notícias e anúncios: a higiene.

In severe health crisis like those of 1854-1856, 1899 and 1918, especially in Porto, where cholera morbus, the bubonic plague, typhus fever, pneumonic influenza and smallpox killed high percentages of the population, the images of the epidemics in the press enable us to identify the scientific knowledge in a country considered peripheral, but which had studies and personnel specialized at the most advanced levels for the time. A database of 6,700 news items and announcements reveals the medical and pharmaceutical knowledge of the second half of the nineteenth and early twentieth centuries, the way it was transmitted and disclosed to the public and the solutions offered by the health authorities. Hygiene was consistently highlighted in the news and announcements.