6. Which one of the following diseases is not infectious? (a) Typhoid
(b) Leprosy
(c) Measles
(d) Leukemia​

Explanation:

(d) Leukemia is not an infectious disease

Leukemia

Explanation:

this is because when you have leukemia, your body makes more white cells than it needs. These leukemia cells can't fight infection the way normal white blood cells do.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.