plagues from a secular viewpoint -biting insects

The third plague, lice, could mean either lice, fleas or gnats based on the Hebrew word (Keenim). If a toxic algal bloom led to the first plague, and a pile of dead frogs followed, it's not surprising that a swarm of insects of some sort would have followed. That's because frogs typically eat insects; without them, the fly population could have exploded, Stephan Pflugmacher, a climatologist Leibniz Institute for Water Ecology and Inland Fisheries in Berlin, said in a television special about the plagues that aired on the National Geographic Channel in 2010. Interestingly, both body lice and fleas can theoretically transmit the bacteria  Yersinia pestis,  which causes bubonic plague, according to a 2010 study published in the journal Emerging Infectious Diseases. If so, then an infestation with lice could have set the stage for the later plagues, such as boils, a 2008 review of plague science found. Scientists have also argued that the sickness that killed the beasts of the field for Egyptians in later plagues might have been Bluetongue or African horse sickness, both of which can be spread by insects from this plague, according to a 2008 Yale Journal of Biology and Medicine


haggadah Section: -- Ten Plagues
Source: https://www.livescience.com/58638-science-of-the-10-plagues.html