Yes, they are human afterall, and the Flood can easily break through a Spartans Visor or Armour and infect them.
no, since they dont have a nerves system the flood cant infect them.
This suggests that Grunts and Jackals are in fact readily infectable by the Flood, and are later augmented in some way to become Carrier Forms.
Walkthrough. This glitch can be done by getting a Flood Infection Form onto a Brute Chieftain. These two do not normally exist in the same area. The only way to get them together is to kill all your allies outside the third tower in the level, while leaving some Flood Carrier Forms alive.
The process of infection begins with host contact. Tentacles protruding from its body penetrate the skin, and attempt direct communication with the host's spinal cord. Once communication is established, a potent attack of the nervous system is commenced.
The reason Hunters cannot be infected with the Flood is the Hunters are not one creature. They are a lot of little worms that form into one big killing machine, and so, do not have a central nervous system.
Looking back, I realise that the Grunts and the Jackals are the only two species that don't get infected by Flood, and are instead just outright killed ingame.
The Mgalekgolo (Ophis congregatio, meaning "serpent union"), more commonly known as Hunters, are a unique gestalt of smaller creatures known as Lekgolo, which are tiny, orange, worm-like creatures that group together to exponentially increase their intelligence, strength, and maneuverability.
The Ruuhtians, better known as Jackals by the majority of UNSC personnel, are the most commonly encountered sub-species of Kig-Yar. They originated from the Eayn supercontinent of Ruuht. Many were seen serving within the Covenant Army throughout the Human-Covenant war.
Johnson was a part of the SPARTAN-I project, originally called the ORION project. The Master Chief was a SPARTAN-II, the best of the best. Noble Six was a SPARTAN-III, whose only superior was the Chief himself.
Spoilers ahead. Paramount's Halo adaptation finally got its debut yesterday, having been stuck in production for what seems like forever. And, in the very first episode, the face of Master Chief was revealed.
Bungie environment artist Vic DeLeon spent six months of pre-production time refining the Flood's fleshy aesthetic and designing the organic interiors of Flood-infested spaceships for Halo 3.
"Anything with sufficient biomass or cognitive capability to sustain them". So somehow, when the Halos activate, they target only large creatures, and creatures with sentience. The Flood are immune to the firings of the Halo. However, without food to sustain them, they went into deep hibernation.
Overview. Floods are the most frequent type of natural disaster and occur when an overflow of water submerges land that is usually dry. Floods are often caused by heavy rainfall, rapid snowmelt or a storm surge from a tropical cyclone or tsunami in coastal areas.
In Halo: The Flood, Master Chief almost becomes infected by an infection form when it penetrates into his chest and almost manages to reach his spine. In The Mona Lisa, a Marine was slashed by a Combat Form and was infected that way.
In Halo: CE, they look like they're probably 6'0'' or 6'1'' throughout the game. In the lore, the Master Chief is 7 feet tall, elites average 8 feet in height, and brutes are 9 feet tall. Hunters are 12 feet tall when standing up straight. However, they're usually crouched behind their shields like jackals.
Hunters, or Mgalekgolo, are not individual creatures like Elites or Grunts but are instead more of a hive. Each hunter is made up of a collection of small worm-like creatures known as Lekgolo. The worms do not speak, so how did these strange creatures end up joining the Covenant in the first place?
While most commonly associated with AIs, this form of corruption is not limited to machine entities: given the right conditions, the Flood is capable of manipulating organic beings as well due to the Gravemind's immense intelligence as well as its powerful metaphysical abilities.
The Flood was contained, and unable to reproduce and grow due to lack of hosts, and eventually died out. The only surviving specimens were contained in state of the art, high-security Forerunner research facilities, such as the Halo Installations and the Threshold Gas Mine.
The Flood attempted to infect Johnson but he was able to shrug off the effects due to the complications of his Boren's Syndrome.
For inter-species communications, Mgalekgolo are capable of speaking at least the Sangheili language, and are not known to interact with any other sapient species. Individual Lekgolo also occasionally make vaguely insectile clicking and chittering noises.
As Vessel Of War pointed out, yes, they can't be infected, but they can be used as raw biomass for things like environmental transformation or building materials for Pure Forms, albeit it takes A LOT of Lekgolo for these purposes due to their poor overall suitable bio-organic contents.
Yes there can be many Graveminds at once as seen during the forerunner-flood war where there were Graveminds and keyminds at once. The Gravemind's bodies are many but all contain the same mind and essence now - the Primordial's - a Precursor essence.