Leaky Vaccines could make viruses more dangerous

But new research suggests that “imperfect” or “leaky” vaccines — ones that don’t make their hosts totally immune to the disease and incapable of spreading it to others — might have a surprising downside. For now, this so-called leakiness only exists in vaccines used to treat farm animals. But researchers warn that as humankind tackles bigger, badder diseases, we should keep the potential danger of leaky vaccines in mind.

Riset pada ayam membuktikan “kebocoran” vaksin bisa menyebabkan virus semakin berbahaya. Periset juga memperingatkan bahwa manusia bisa menghadapi resiko bahaya virus yang lebih besar daripada binatang.

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