Multiple choice general knowledge science & technology

What did Theobald Smith prove diseases could be transmitted by, while studying Texas cattle fever, in 1892?

  1. Mice

  2. Sneezing

  3. Syringes

  4. Insects
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Theobald Smith demonstrated in 1892 that Texas cattle fever (also called tick fever) was transmitted by ticks - specifically cattle ticks (Boophilus annulatus). This was groundbreaking proof that arthropods could transmit disease, establishing the field of vector-borne disease transmission. His work showed that neither mice, sneezing, nor syringes were responsible - the disease spread through insect bites. This discovery was crucial for understanding disease transmission mechanisms.

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