Indeed, the Bacille Calmette–Guérin (BCG) vaccine is almost 100 years old, while the most widely used diagnostic test, microscopic detection of bacilli in sputum, was developed 130 years ago.
Het Bacille Calmette–Guérin (BCG)-vaccin is bijna honderd jaar oud, terwijl de meest gebruikte diagnostische test, de microscopische ontdekking van bacillen in sputum, al 130 jaar geleden is ontwikkeld.