A growing number of people undertake international travel, and yet faster growth of such travel is expected in the tropics. Information on the hazards presented by pool and hot spring waters in tropical countries is very limited. This review aims to collate available information on pool water quality, alongside data on cases and outbreaks associated with swimming in pools in tropical regions affecting both local populations and travellers. Bacteria species commonly causing cases and outbreaks in the tropics as well as elsewhere in the world were excluded, and the review focuses on studies related to pathogens that, with the exception of Cryptosporidium, are unusual in more temperate climates. Studies concerning subtropical countries were included in the light of climate change. Diseases transmitted by vectors breeding in poorly maintained, neglected or abandoned pools were also included. 83 studies dealing with Microsporidia, Leptospira spp., Schistosomas spp., Cryptosporidium spp., Acanthamoeba spp., Naegleria spp., Clostridium trachomatis, viruses, and vectors breeding in swimming pool and hot tub waters, and fulfilling predefined criteria, have been included in our survey of the literature. In conclusion, prevention strategies for pool safety in the tropics are imperative. Public health authorities need to provide guidance to westerners travelling to exotic destinations on how to protect their health in swimming pools.
The Mediterranean area is densely populated and a very popular tourist destination. This study aimed at gathering up-to-date information on current national pool and spa regulations. We formulated and duly distributed to 20 Mediterranean countries a questionnaire divided into two sections: for pool and spa facilities, respectively. The questionnaire was formulated in such a way that a positive answer would imply that the specific topic was addressed effectively. While all 20 countries responded to the swimming-pool-related questionnaire, only 11 of these countries reported the existence of spa-related regulations. When combining the response overall of all countries for pool and spa facilities together, of a grand total of 606 answers, 183 (30.2%) were positive. The positive answers in the pool section of the questionnaire were 29% of the total of 420 answers while positive answers in the spa section of the questionnaire were fewer (27.8% of the total of 176 answers). The countries were grouped by geographical area of the Mediterranean basin where they are situated. Also, the questions were grouped into broad thematic categories. The paper presents conclusions drawn on the basis of the data received according to these geographical and thematic groupings.
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