新湖畔网 （随信APP) | 智利发布疫苗，可使狗狗不生育一年

智利发明的一种狗狗暂时绝育疫苗，被称为第一种 - 版权归AFP罗德里戈·阿兰格瓦

智利推出了一种被描述为第一种的疫苗，可以让狗狗绝育一年，并预计将在数十个国家出售。

疫苗能阻止性行为和繁殖，为犬只提供了一种可逆的手术绝育的替代方法，其发明者说。

“这是世界上首种用于狗的这种类型的疫苗，”来自智利大学兽医学科的莱昂纳多·赛恩斯说。

自2009年以来，研究人员及其团队一直在致力于开发这种疫苗，本月开始在南美国家分发。

这种疫苗能刺激抗体，并在一年内阻止雄性和雌性狗狗产生性激素。

“所有的一切都被阻止了：性活动和生育能力，”赛恩斯说。

该疫苗在包括美国、阿根廷、巴西和欧盟在内的40个国家申请了专利。

在智利，每针疫苗的费用为50美元。

27岁的学生伊万·古铁雷斯带他的狗弗兰西斯科去圣地亚哥的一家兽医诊所接种疫苗。

“我真的不想让他接受手术，”他说。

他不是唯一担心手术绝育的人。

“大多数主人害怕手术，”诊所的兽医玛丽埃拉·德尔·萨兹说，指出了心脏呼吸停止的风险。

另一种对狗进行暂时绝育的方法是在皮下植入激素植入物，但“可能会引起副作用，”赛恩斯说。

A dog is temporarily sterilized with a vaccine described by its Chilean creators as the first of its kind - Copyright AFP RODRIGO ARANGUA

Chile has launched a vaccine described as the first of its kind that sterilizes dogs for a year and is expected to be sold in several dozen countries.

The injection prevents sexual behavior and reproduction, offering an alternative to irreversible surgical castration, its creators say.

“This is the first vaccine of this type in the world for dogs,” said Leonardo Saenz, from the University of Chile’s veterinary sciences faculty.

The researcher and his team have been working since 2009 to develop the vaccine, which began to be distributed this month in the South American nation.

It stimulates antibodies and stops the production of sex hormones for a year in both male and female dogs.

“Everything is blocked: sexual activity and fertility,” Saenz said.

The Egalitte vaccine has been patented in 40 countries, including the United States, Argentina, and Brazil, as well as in the European Union.

In Chile, it costs $50 a shot.

Ivan Gutierrez, a 27-year-old student, took his dog Franchesco to a veterinary clinic in Santiago to be given the injection.

“I didn’t really want him to have the operation,” he said.

He is not alone in having concerns about surgical castration.

“Most owners are afraid of surgery,” said Mariela del Saz, the clinic’s veterinarian, noting the risk of cardiorespiratory arrest.

Another method of temporary castration for dogs involves the insertion of a hormonal implant under the skin, but it “can cause side effects,” Saenz said.