update : Silva ( baby piggy ) turned out to have conjunctivitis,so we took her to the vet & she gave her some antibiotics & an eye gel,so hopefully it will clear up soon! Also,i'm quarantining little Silva from my other piggy.But one thing that we forgot to ask the vet is,is it catching to humans?
Glad that you have got a diagnosis and proper treatment! Conjunctivits is not infectious or transmittable, so Silva can stay with her friends and you only need to observe normal commonsense hygiene, i.e. a good hand wash before and after handling guinea pigs.
There are very few things that transmit between humans guinea pigs. The most transmittable is ringworm (fungal), which affects all mammals and can jump species. In this case, you need to observe strict hygiene to prevent becoming infected and infecting others in turn.
Skin parasites are species specific and cannot survive for any length in any other than their host species; at the very worst, you can get a shot term rash, but even that is rare, especially if you catch things early on.
While it is rare and evidence is only episodal, some human cold, flu or norovirus bugs seem to be able to cross over to guinea pigs, in those cases usually with devastating results, so please always use good hygiene and commonsense in interacting as little as possible with your guinea pigs when you are ill.
Kennel cough in dogs can transmit to guinea pigs and kill as an bordetella and pasteurella from rabbits if they are kept together.
