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The age distribution and the infection rate of yaws in Jamaica


, : The age distribution and the infection rate of yaws in Jamaica. Amer Jour Hyg 26(3): 423-436

In this population of 23,000 persons living in a yaws-infested rural area in Jamaica, B.W.I., the proportion of the population with yaws increases rapidly to a level of 70-80% at 15-20 yrs. of age, then gradually decreases. Annual infection rates among previously uninfected persons rise sharply to a peak of 20-30% at about 8 yrs. of age, then fall gradually. Few new infections occur after 30 yrs. of age. The proportion of persons with yaws falls short of the level expected on the basis of the annual attack rates. This discrepancy increases most rapidly during the 1st decade, which is hard to explain on any basis other than that of a higher mortality in childhood among yaws sufferers than among those uninfected. The level of infection is higher among [male][male] and its peak is reached earlier. Annual infection rates for [male][male] are consistently higher and reach their peaks about a year later than the rates for [female][female].

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Other references

Bogatyrev, L.G.; Fomina, T.V., 1990: Diagnosis of lower horizons of ground litter. The boundaries between humification (F) horizons and humus (H) horizons are often not clear. A decrease in the organic matter content of the humus horizon can be accompanied by a decrease in the lignin and cellulose percentage, with an increase in...

Chatzipavlou, I.A.; Christoforidou, S.A.; Vlachopoulou, M., 2017: A recommended guideline for the development of mHealth Apps. Mobile Health or mHealth applications cope with medical or health issues supported by smartphones. Being a part of great importance in healthcare, mHealth apps are able to improve both the quality of medical services and the safety of the patients...

McNicol, A.; Robertson, C.; Gerrard, J.M., 1993: Vanadate activates platelets by enhancing arachidonic acid release. Human platelet activation is associated with, and regulated by, the phosphorylation of a number of proteins. Recently, attention has been focused on tyrosine phosphorylation of proteins and their function in platelet activation. Here vanadate, an...

Arkhipova E.E.; Osanov D.P.; Burov N.I., 1986: The influence of the size of the exposed field of swine skin on the severity and outcome of radiation injury. Swine skin areas of 12.56 cm2, 50 cm2 and 100 cm2 were exposed to .beta.-particles from 90Sr + 90Y (100 Gy). The increase in size of the exposed site caused a considerable increase in the degree of the affection and a change in the regeneration ra...

Panos, J.; Polácková, H.; Schlegerová, D., 1975: Dissecting aneurysm of the iliac artery simulating the clinical picture of dissecting aneurysm of the thoracic aorta. Vnitrni Lekarstvi 21(7): 712-714

Masai H.; Arai K I., 1989: Escherichia coli dna t gene function is required for pbr 322 plasmid replication but for r1 plasmid replication. Plasmid pBR322 was unable to replicate in a temperature-sensitive dnaT1 strain at a nonpermissive temperature, whereas a pBR322-derived plasmid carrying the wild-type dnaT+ gene was able to replicate under the same conditions. In contrast to pBR32...

Kaushik, P.; Goyal, P.; Chauhan, A.; Chauhan, G., 2010: In Vitro Evaluation of Antibacterial Potential of Dry FruitExtracts of Elettaria cardamomum Maton (Chhoti Elaichi). Emergence of resistance among pathogenic bacteria against available antibiotics is posing a great challenge to the current world. Thus, there is a great need to discover novel antibiotics. Traditional plants have been proved to be novel source in...

Mitchell J.F.B.; Warrilow D.A., 1987: Summer dryness in northern mid latitudes due to increased carbon dioxide. Nature (London) 330(6145): 238-240

Rava, R.P.; Baraga, J.J.; Feld, M.S., 2004: Systems and methods of molecular spectroscopy to provide for the diagnosis of tissue. Systems and methods for spectroscopic diagnosis and treatment are employed which utilize molecular spectroscopy to accurately diagnose the condition of tissue. Infrared Raman spectrscopy and infrared attenuated total reflectance measurements are p...

Watkins David W.J.; McKinney Daene C., 1995: Robust plume containment system design under uncertainty. Pages 199-204: