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The epidemic struck St. Louis, Missouri, in early 1849, and by the end of summer, estimates of the dead ranged from 4,500 to 6,000. During the 1849 California Gold Rush, travelers carried the bacteria along the Santa Fe Trail and other overland routes. The epidemic thrived in the unsanitary conditions along the trails, peaking in 1850 as it was ...
Sep 15, 2022 · Rocky Mountain spotted fever (RMSF) is a life-threatening tick-borne disease documented in North, Central, and South America. In California, RMSF is rare; nonetheless, recent fatal cases highlight ecological cycles of the two genera of ticks, Dermacentor and Rhipicephalus, known to transmit the disease. These ticks occur in completely different ...
- 10.1371/journal.pntd.0010738
- 2022/09
OCLC:39673413. 1860. Map of Northampton Co. Pennsylvania, by G. M. Hopkins, Jr., published by Smith, Gallup & Co., Phila. 6 parts, 20 x 28 ea. col. ; 148 x 145 cm. Scale 1 5/8 in = 1 mi. County map is surrounded by 36 maps of villages and towns in the county, and 4 drawings of Easton in the corners of the map.
Jul 25, 2018 · Avery had helped form the Potomac Appalachian Trail Club in 1927 and through that group oversaw the cutting and blazing of the Appalachian Trail from South Mountain in south central Pennsylvania to the proposed Shenandoah National Park in the late 1920s. A former woods road, now blazed as the Appalachian Trail. (Author photo.)
Nov 2, 2020 · Proportion of fatal and nonfatal cases of Rocky Mountain spotted fever in Sonora, Mexico, 2015–2018, among all cases (Map A) and persons aged < 18 years (Map B). Clinical and laboratory findings. Fever was reported by all cases as required by the case definition.
- Diego I. Álvarez-López, Estefanía Ochoa-Mora, Kristen Nichols Heitman, Alison M. Binder, Gerardo Álv...
- 10.4269/ajtmh.20-0854
- 2021
- Am J Trop Med Hyg. 2021 Jan; 104(1): 190-197.
Apr 8, 2024 · This project includes recommended Pennsylvania historic maps and geospatial datasets from a period of 1800 to present organized by thematic categories of geographic names, landmarks, transportation, hydrography, municipal boundaries, land ownership, elevation, land use/land cover, and remote sensing.
Mar 31, 2017 · Rocky Mountain spotted fever, a tick-borne zoonosis caused by Rickettsia rickettsii, is among the most lethal of all infectious diseases in the Americas. In Mexico, the disease was first described during the early 1940s by scientists who carefully documented specific environmental determinants responsible for devastating outbreaks in several communities in the states of Sinaloa, Sonora ...
