Two genera, Circovirus
and Gyrovirus, are recognized, and an additional genus, Cyclovirus, has been proposed (1,2).
When porcine circovirus
2 (PCV2) emerged in the late 1990s after circulating in pig populations for at least several decades before.
Two weeks before the start of the study, physical examinations were performed, and the parrots were tested by polymerase chain reaction analysis for the presence of psittacine circovirus
(blood sample) and Chlamydophila psittaci (choanal and cloacal swab and blood samples).
At present, the former include foot-and-mouth disease (FMD), bird flu, porcine reproductive and respiratory syndrome (PRRS), swine fever, and peste des petits ruminants (PPR); the latter refer to porcine circovirus
(PCV), Newcastle disease, porcine parvovirus (PPV) and other varieties.
Interaction of porcine circovirus
type 2 replication with intracellular redox status in vitro.
strain 2 (PCV2) is the cause of porcine circovirus
associated diseases (PCVAD) in pigs, a disease that has caused great economic losses in the pig industry in the US.
According to state news, the pigs had died from a common virus, the porcine circovirus
, which is not harmful to humans.
Laboratory tests have identified that some of the pigs had porcine circovirus
, a common disease that affects pigs but not humans.
However, porcine circovirus
, a virus that can spread among pigs though not to human beings, has been detected in a water sample taken from the Huangpu River.
The city's agricultural commission said on Monday that some of the animals had tested positive for porcine circovirus
, which it described as a common swine disease that does not affect humans.
Novel HIV vaccine vectors were also explored, with an enhanced experimental DNA vaccine for HIV being made that utilises an expression enhancer derived from an animal circovirus
More recently, our oral vaccine for ileitis and injectable vaccines for porcine reproductive and respiratory syndrome (PRRS), circovirus
and mycoplasma pneumonia have become market leaders in the world-wide swine health industry.