Word: nigrosin
(lookup in dictionary)
(lookup stats)
Dates: during 1940-1949
Sort By: most recent first
(reverse)
Measles is transmitted by a tiny virus which was made visible under the microscope in 1937 with a stain called nigrosin. Last year a successful vaccine was announced. It will be useful to protect boys going into the Army from remote rural districts, where they have never had measles or acquired natural immunity. Many such boys in World War I died of pneumonia, brought on by measles...
| 1 |