Cholera outbreaks and pandemics
That year, cholera was transmitted along the California, Mormon and Oregon Trails as 6,000 to 12,000 are believed to have died on their way to the California Gold Rush, Utah and Oregon in the cholera years of 1849–1855. It is believed more than 150,000 Americans died during the two pandemics between 1832 and 1849.
Oregon Trail
Starting in 1855, many of the poorer Mormon travelers made the trek with hand built handcarts and fewer wagons. Guided by experienced guides, handcarts—pulled and pushed by two to four people—were as fast as ox-drawn wagons and allowed them to bring of possessions plus some food, bedding, and tents to Utah. Accompanying wagons carried more food and supplies. Upon arrival in Utah, the handcart pioneers were given or found jobs and accommodations by individual Mormon families for the winter until they could become established. About 3,000 out of over 60,000 Mormon pioneers came across with handcarts.