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In 2006, a Czech research team [66] discovered women with high levels of toxoplasmosis antibodies were significantly more likely to give birth to baby boys than baby girls. In most populations, the birth rate is around 51% boys, but people infected with T. gondii had up to a 72% chance of a boy.
Some mammals, like humans or cats, give birth to tiny, helpless infants, barely bale to do more in its first few weeks of life than root around for sustenance from its mothers bodies.
Feline immunodeficiency virus (FIV) is a Lentivirus that affects cats worldwide, with 2.5% to 4.4% [1] [2] of felines being infected.. FIV was first isolated in 1986, by Niels C Pedersen and Janet K. Yamamoto at the UC Davis School of Veterinary Medicine in a colony of cats that had a high prevalence of opportunistic infections and degenerative conditions and was originally called Feline T ...
Its name is a French term ("cat-cry" or "call of the cat") referring to the characteristic cat-like cry of affected children. [2] It was first described by Jérôme Lejeune in 1963. [ 3 ] The condition affects an estimated 1 in 50,000 live births across all ethnicities and is more common in females by a 4:3 ratio.
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Abby Phillip reflects on her midwife-attended home birth, amidst the maternal mortality crisis that disproportionately affects Black women and demands multifaceted solutions.
The most common form of sterilization in dogs and cats is surgical, spaying in females and castration in males. Non-surgical fertility control can either result in sterilization or temporary contraception and could offer a cheaper way to keep wild dog and cat populations under control. As of 2019, only contraceptives are commercially available.
The obstetrical dilemma is a hypothesis to explain why humans often require assistance from other humans during childbirth to avoid complications, whereas most non-human primates give birth unassisted with relatively little difficulty. This occurs due to the tight fit of the fetal head to the maternal birth canal, which is additionally ...