infectious

1. Caused by an agent that enters the host's body (such as a bacterium, virus, parasite, or prion); often, also, transmitted among hosts via any of various routes (for example, contact, droplet-borne, airborne, waterborne, foodborne, fomite-borne, or bloodborne).

   Cancer is usually not infectious.

   More infectious diseases like the flu are usually less potent.

2. Able to infect others; capable of transmitting pathogens.

   Despite feeling better, the patient is still infectious.

   infektiös

   зара́зныйzaráznyj

3. Spreading quickly from one person to another.

   infectious smile

   Her enthusiasm for work can be really infectious.

   ansteckend, infektiös

   зарази́тельныйzarazítelʹnyj, зара́зныйzaráznyj, инфекцио́нныйinfekciónnyj

4. (разговорное)Memorable and invoking excitement or interest.

   Pop music is more infectious than elevator music.

1. Mumps is an infectious disease.

   Свинка - инфекционное заболевание.

   ukСвинка — інфекційне захворювання.

   deMumps ist eine ansteckende Krankheit.

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2. Laughter is infectious.

   Смех заразителен.

   deLachen ist ansteckend.

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3. Tom's enthusiasm is infectious.

   deToms Enthusiasmus ist ansteckend.

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4. Tom's laughter is infectious.

   deToms Lachen ist ansteckend.

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5. Tom's laughter was infectious.

   deToms Lachen war ansteckend.

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правильный