Like many other upper respiratory diseases, diphtheria is most likely to break out during the winter months. At one time it was a major childhood killer, but in the early 2000s it is rare in developed countries because of widespread immunization.
Italy joined the Pact in 1937. The RomeâBerlin Axis became a military alliance in 1939 under the so-called  Pact of Steel , with the Tripartite Pact of 1940 leading to the integration of the military aims of Germany and its two treaty-bound allies.he RomeâBerlin Axis became a military alliance in 1939 under the so-called  Pact of Steel , with the Tripartite Pact of 1940 leading to the integration of the military aims of Germany and its two treaty-bound allies.
This period was also critical to Germany and Italy's efforts in building a coalition. A most important step in the military features of the German plan was the signing on 25 and 26 October, 1936, of a treaty with protocols, between Germany and Italy, which together formed the origin of the now famous Rome-Berlin Axis.ne year later Italy adhered to the Anti-Comintern Pact. This event in effect extended the already-established Rome-Berlin Axis to Tokyo, and signalized the alliance of the three totalitarian powers.