Answer :
Final answer:
The statement is true. Transovarial transmission refers to the transfer of a pathogen from one generation to the next via an egg, while transstadial transmission involves the transmission of a pathogen from one stage of life to another. Both are used in the context of vector-borne diseases.
Explanation:
Yes, it's true. Transovarial transmission describes the process of a pathogen being transferred from one generation to the next through an egg. This is a common method of disease transmission in insects and arachnids. In contrast, transstadial transmission refers to the transfer of a pathogen from one stage of life to another within the same generation. This can occur, for instance, when a larval tick becomes infected by a pathogen and the infection persists through the organism's transformation into an adult tick.
An important note is that both these terms are used in the context of vector-borne diseases, with the term 'vector' typically referring to an organism, like a mosquito or tick, that carries and transmits a pathogen from one host to another.
Remember, in the process of biological transmission, pathogens reproduce within the biological vector, facilitating the transmission from one host to another.
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