"Portuguese Observatory of Taeniasis and Cysticercosis": A "One Health" example for epidemiological surveillance of one neglected disease in a European country

Cysticercosis results from the ingestion Taenia solium eggs directly by faecal-oral route or contaminated food or water. Human tapeworm carriers who have become infected after ingesting pork meat contaminated with cysticerci release these eggs. Cysticercosis occurs after tapeworm eggs are ingested by an intermediate host (pig or human) and then hatch, migrate, and lodge in the host's tissues, where they develop onto larval cysticerci. When they lodged in the central nervous system of humans, results in the disease condition called Neurocysticercosis (NCC), with a heterogeneous manifestations depending of the locations of cysts, number, size and their stage of evolution (1). Consequently the prognostic ranges from asymptomatic to situations leading to death in 2% to 9.8%. of cases (7) In swine’s there are few studies, but recent works have proved that animals, for the same reasons, also have neurological abnormalities, expressed by seizures, stereotypic walk in circles, chewing motions with foamy salivation included tonic muscle contractions followed by a sudden diminution in all muscle tone leading to collapse (2). Conventional domestic wastewater treatment processes may not be totally effective in inactivating parasites eggs from Taenia solium, allowing some contamination of soils and agricultural products (11). In Portugal there are some evidence of aggregation of human cysticercosis cases in specific regions, bases in ecological design studies (6). There are few information about human tapeworm carriers and social and economic factors associated with them. Success in knowledge and consequently in lowering transmission is limited by the complex network of biological and social factors that maintain the spread. Effective control of mostly zoonosis require One Health approach, after a real knowledge and transparency in the information provided by the institutions responsible for both animal and human health, allowing sustained interventions targeted at the transmission cycle's crucial nodes. In general, the model used to control, reflects a rural reality, where pigs are raised freely, poor sanitation conditions and incipient sanitary inspection. In cysticercosis, pigs are obligate intermediate hosts and so considered as first targets for control and used as sentinels to monitor environmental T. solium contamination (3). Usually environmental contamination with Taenia spp. eggs is a key issue in most of studies with landscape factors influencing presence of Taenia spp. antigens in both pigs and humans (5). Soil-related factors as well as socio-economic and behavioural factors are associated with the emergence of significant clustering human cysticercosis (4,5). However scarce studies has been produced in urban environmental and in developed countries with the finality to characterize the spatial pattern. There are still few data available regarding its prevalence and spatial distribution; Transmission patterns are likely to exhibit correlations as housing conditions, water supply, basic sanitation, schooling and birthplace of the individual or relatives, more than pigs rearing free, soil conditions (9). As a matter of fact, tapeworm carriers from endemic zones can auto-infect or transmit infection to other people or arrive already suffering NCC (as a result of travelling to or being a citizen from an endemic cysticercosis country) to a free cysticercosis country. Transmission is fecal-oral; this includes transmission through person-to-person contact, through autoinfection, or through contaminated food This has been happening in different continents as North America (5.4–18% been autochthonous), Europe and Australia (7). Recently, case reports of NCC have also emerged from Muslim countries. (10). Actually, different papers relate an epidemic situation in Spain and Portugal (7, 8). However the kind of study done does not authorize such conclusion. There are no evidence that infections were acquired in Portugal and there are not characterized the mode of transmission. Papers with these kind of information will be allow to have economic consequences resulted from artificial trade barriers with serious consequences for pig producers and pig meat trade. We need transparency in information’s that allow provide the basis to support the development and targeting of future effective control programmes (and prove we need that). So, to have a real picture of the disease, it is necessary integrate data from human, animal and environmental factors surrounding human and pig cases to characterize the pattern of the transmission. The design needs to be able to capture unexpected, and not common outcomes (routine data). We need to think “One Health” to get a genuine image of the situation.

Literary reading is a team game: exercices with Carroll and Carle.

This paper will focus on the issue of training future literary reading mediators or promoters. It will propose a practical exercise on playing with intertextuality with the aid of two children literature classics and masterpieces—The Adventures of Alice in Wonderland by Lewis Carroll (1865) and The Very Hungry Caterpillar by Eric Carle (1969). This exercise is not designed to be a pedagogical or didactic tool used with children (that could alternatively be done with the same corpora), but it is designed to focus on issues of literary studies and contemporary culture. The aim of this practical exercise with future reading promoters is to enable graduate students or trainees to be able to recognize that literary reading can be a team game. However, before arriving at the agan stage, where the rules get simplified and attainable by young readers, hard and solitary work of the mediator is required. The rules of this solitary game of preparing the reading of classical texts are not always evident. On the other hand, the reason why literary reading could be (and perhaps should be) defined as a new team game in our contemporary and globalized world derives directly from the fact that we now live in a world where mass culture is definitely installed. We should be pragmatic on evaluating the conditions of communication between people (not only young adults or children) and we should look the way people read the signs on everyday life and consequently behave in contemporary society, and then apply the same rules or procedures to introduce old players such as the classical books in the game. We are talking about adult mediators and native digital readers. In the contemporary democratic social context, cultural producers and consumers are two very important elements (as the book itself) of the literary polissystem. So, teaching literature is more than ever to be aware that the literary reader meaning of a text does not reside only in the text and in its solitary relationship with the quiet and comfortably installed reader. Meaning is produced by the reader in relation both to the text in question and to the complex network of texts invoked in the reading process and plural connections provided by the world of a new media environment.