Search results
Funded the discovery of and distributed breakthrough antibiotic streptomycin. Tuberculosis was historically a leading cause of death in the U.S. In 1943, Dr. Selman Waksman and Albert Schatz discovered streptomycin, the first effective treatment for the disease. Merck supported Dr. Waksman's research lab and held the new drug's patent rights.
Aug 20, 2020 · Discovered in 1944, streptomycin, an injectable streptidine aminoglycoside antibiotic, was the first antimicrobial agent with proven activity against M. tuberculosis. In conjunction with isoniazid and para-aminosalicylic acid (PAS), streptomycin formed part of the first multidrug combination chemotherapy for TB, introduced in 1952.
Jul 30, 2010 · The internet got its start in the United States more than 50 years ago as a government weapon in the Cold War. For years, scientists and researchers used it to communicate and share data with one ...
The history of the United States public debt began with federal government debt incurred during the American Revolutionary War by the first U.S treasurer, Michael Hillegas, after the country's formation in 1776. The United States has continuously experienced fluctuating public debt, except for about a year during 1835–1836.
The Tariff Act of 1789 imposed the first national source of revenue for the newly formed United States. The new U.S. Constitution ratified in 1789, allowed only the federal government to levy uniform tariffs. Only the federal government could set tariff rates (customs), so the old system of separate state rates disappeared.
Sep 28, 2017 · Today, more than 5 million people of Puerto Rican descent live in the United States, with huge communities centered in Chicago, Philadelphia, Miami and especially New York City. Is Puerto Rico ...
Dec 7, 2016 · Ancient times: the first historical records. It has been hypothesized that the genus Mycobacterium originated more than 150 million years ago.Mycobacterium ulcerans, causing infections since ancient times, requires specific environmental conditions as reflected nowadays in its distribution worldwide [].
