Task: Question Answering
Input (English): passage: The redback is one of the few spider species that can be seriously harmful to humans, and its liking for habitats in built structures has led it to being responsible for a large number of serious spider bites in Australia. Predominantly neurotoxic to vertebrates, the venom gives rise to the syndrome of latrodectism in humans; this starts with pain around the bite site, which typically becomes severe and progresses up the bitten limb and persists for over 24 hours. Sweating in localised patches of skin occasionally occurs and is highly indicative of latrodectism. Generalised symptoms of nausea, vomiting, headache, and agitation may also occur and indicate severe envenomation. An antivenom has been available since 1956. There have been no deaths directly due to redback bites since its introduction, however Isbister et al. have suggested patients for whom antivenom is considered should be fully informed ``there is considerable weight of evidence to suggest it is no better than placebo'', and in light of a risk of anaphylaxis and serum sickness, ``routine use of the antivenom is therefore not recommended''. As of the 2013 (updated 2014) edition of the Snakebite & Spiderbite Clinical Management Guidelines from NSW HEALTH (latest available in 2017), Red-back spider bites were considered not life-threatening but capable of causing severe pain and systemic symptoms that could continue for hours to days.
 question: can a red back spider bite kill you?
Output (English): Yes