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Title: Lifecycle cycles of parasites Post by: Lamin N Ceesay on Nov 7, 2019 Why are parasites with indirect lifecycle difficult to control?
Title: Re: Lifecycle cycles of parasites Post by: bio_man on Nov 7, 2019 The question answers itself. The "indirect lifestyle" is what makes it hard to target the pathogen once inside the human host. At any given time, there could be parasites growing at different stages in its lifecycle. Drugs targeting a specific stage may not be able to eradicate all parasites at once. This is why it takes a long time to treat such infections. Also, parasites have the decency to embed their eggs inside the host cells, making it hard for the immune system to target the invader.
Title: Re: Lifecycle cycles of parasites Post by: duddy on Nov 7, 2019 Some parasites have multi-step life cycles, and their antigens are detectable only at certain points. Some parasites undergo programmed metamorphosis, and appear in different forms at different stages.
Many parasites are endemic to the place of infection, so if you were to travel somewhere are got infected, chances are when you return to your native country, the technology there won't be good at recognizing them. In addition, lab detection of parasites requires special training Title: Re: Lifecycle cycles of parasites Post by: Lamin N Ceesay on Nov 7, 2019 I found your responses very useful. Thank you all.
Title: Re: Lifecycle cycles of parasites Post by: duddy on Nov 7, 2019 ☝️👍
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