| 歌曲 | HIV |
| 歌手 | 英语听力 |
| 专辑 | VOA慢速英语：健康报道 |
| [00:00.00] | From VOA Learning English, |
| [00:02.59] | this is the Health Report. |
| [00:05.48] | Hundreds of thousands of children |
| [00:08.40] | become infected with the AIDS virus every year. |
| [00:13.02] | There boys and girls are born to mothers who have HIV, |
| [00:18.01] | the human immunodeficiency virus. |
| [00:21.44] | Infection takes place during pregnancy |
| [00:24.79] | or from breastfeeding. |
| [00:27.60] | Recently, Scientists identified a protein |
| [00:32.31] | in breast milk that suppresses the virus, |
| [00:35.97] | the protein may even protect babies |
| [00:39.36] | from become infected. |
| [00:41.72] | Now, Experts say the discovery could lead to new ways |
| [00:46.67] | to protect babies whose mothers are infected with HIV. |
| [00:51.77] | To prevent Infection, doctors give Anti-retroviral drugs |
| [00:57.79] | to both mothers and their babies, |
| [01:00.88] | that has greatly reduced the number of infections. |
| [01:04.84] | But experts say that even without anti-AIDS drugs, |
| [01:10.68] | only a small percentage of babies |
| [01:13.68] | become infected through breast milk. |
| [01:16.63] | Sallie Permar is a professor of pediatrics and immunology |
| [01:22.19] | at Duke University in North Carolina. |
| [01:25.96] | She says, breastfeed babies appear to resist infection. |
| [01:31.71] | "It is actually remarkable that despite |
| [01:34.85] | the infant being exposed to the virus multiple times daily |
| [01:38.29] | for up to two years of their life, |
| [01:41.57] | actually only 10 percent of those babies |
| [01:43.82] | will become infected," said Permar. |
| [01:45.31] | The low rate of the infection |
| [01:47.47] | was of great interest to researchers, |
| [01:50.13] | including Sallie Permar. |
| [01:52.52] | She led an effort to identify a substance in breast milk |
| [01:57.98] | that may protect babies from infection. |
| [02:01.19] | Her team directed its attention to a protein |
| [02:05.24] | called Tenacin-C, also called TNC. |
| [02:10.71] | It is known to be involved in the process of healing wounds. |
| [02:15.62] | But what purpose it serves in breast milk is not known. |
| [02:21.27] | The researchers exposed the TNC protein |
| [02:25.48] | from breast milk of uninfected women to HIV, |
| [02:29.99] | the protein linked up to the virus and made it harmless. |
| [02:34.94] | Antiretroviral drugs remain effective |
| [02:39.04] | in limiting the passing of HIV from mother to baby. |
| [02:44.25] | But professor Permar and her team suggest |
| [02:49.15] | the TNC could be used in places |
| [02:52.65] | where costly drug treatments are often not available. |
| [02:57.66] | "The issues are access to the drugs as well as monitoring. |
| [03:03.16] | There are issues of toxicity and anti-retroviral drug resistance. |
| [03:07.73] | And so we think alternative strategies |
| [03:11.49] | may be needed to completely eliminate infant transmission," she Permar. |
| [03:14.44] | She suggests that TNC could be given to babies |
| [03:20.35] | before breastfeeding to provide additional protection against HIV. |
| [03:27.15] | She adds that the protein is safe, |
| [03:30.59] | because it is already in natural part of human milk. |
| [03:35.10] | This may avoid the problem of HIV |
| [03:38.69] | become resisted to Antiretroviral drugs. |
| [03:42.89] | The team reported its findings in the journal |
| [03:46.65] | Proceedings of the National Academy of Sciences. |
| [03:50.61] | And that is the Health Report from VOA Learning English. |
| [03:55.90] | I'm June Simms. |
| [00:00.00] | měi guó zhī shēng yīng yǔ xué xí |
| [00:02.59] | jiàn kāng bào dào |
| [00:05.48] | měi nián yǒu chéng qiān shàng wàn de ér tóng |
| [00:08.40] | gǎn rǎn ài zī bìng bìng dú |
| [00:13.02] | zhèi xiē hái zi de shēng mǔ tǐ nèi yǒu these |
| [00:18.01] | rén lèi miǎn yì quē xiàn bìng dú |
| [00:21.44] | gǎn rǎn zài rèn shēn huò |
| [00:24.79] | bǔ rǔ qī fā shēng |
| [00:27.60] | zuì jìn, kē xué jiā men jiàn bié chū yī zhǒng mǔ rǔ zhōng |
| [00:32.31] | yì zhì bìng dú de dàn bái zhì |
| [00:35.97] | zhè zhǒng dàn bái zhì kě néng kě yǐ |
| [00:39.36] | bì miǎn yīng ér de gǎn rǎn |
| [00:41.72] | zhuān jiā biǎo shì, zhè yī fà xiàn yǒu zhù yú tí gōng |
| [00:46.67] | bǎo hù nèi xiē shēng mǔ wèi HIV yáng xìng de yīng ér de xīn fāng shì |
| [00:51.77] | wèi zǔ zhǐ gǎn rǎn, yī shēng huì tóng shí gěi mǔ qīn hé hái zi |
| [00:57.79] | kàng nì zhuǎn lù bìng dú yào wù |
| [01:00.88] | zhè yī jǔ cuò dà dà jiàng dī le gǎn rǎn shù liàng |
| [01:04.84] | dàn zhuān jiā shuō jí shǐ méi yǒu kàng ài zī yào wù |
| [01:10.68] | zhǐ yǒu yī xiǎo bù fèn yīng ér |
| [01:13.68] | huì tōng guò mǔ rǔ gǎn rǎn |
| [01:16.63] | sà lì pà mǎ shì wèi yú běi kǎ luó lái nà zhōu dù kè dà xué de |
| [01:22.19] | yī míng r kē hé miǎn yì xué jiào shòu |
| [01:25.96] | tā shuō mǔ rǔ wèi yǎng de yīng ér kě néng bú huì gǎn rǎn bìng dú |
| [01:31.71] | " zhè yàng de jié guǒ hěn yǐn rén zhù mù, jǐn guǎn |
| [01:34.85] | yīng ér zài liǎng suì zhī qián měi tiān dū yào |
| [01:38.29] | hé bìng dú jiē chù shù cì |
| [01:41.57] | shí jì shang zhǐ yǒu bǎi fēn zhī shí de yīng ér |
| [01:43.82] | huì gǎn rǎn shàng bìng dú," pà mǎ jiào shòu shuō. |
| [01:45.31] | dī gǎn rǎn lǜ |
| [01:47.47] | duì bāo kuò sà lì zài nèi yán jiū zhě men lái shuō |
| [01:50.13] | hěn yǒu xī yǐn lì |
| [01:52.52] | tā lǐng dǎo le jiàn bié mǔ rǔ zhōng |
| [01:57.98] | bǎo hù yīng ér miǎn shòu gǎn rǎn de dàn bái zhì dì gōng zuò |
| [02:01.19] | tā de tuán duì bǎ zhù yì lì fàng zài le yī zhǒng |
| [02:05.24] | míng jiào TNC de dàn bái zhì shàng |
| [02:10.71] | wǒ men zhī dào tā zài shāng kǒu yù hé zhōng fā huī zuò yòng |
| [02:15.62] | dàn tā zài mǔ rǔ zhōng de gōng néng hái bìng wèi fā xiàn |
| [02:21.27] | yán jiū zhě men jiāng wèi gǎn rǎn HIV de nǚ xìng mǔ rǔ zhōng tí qǔ de |
| [02:25.48] | TNC dàn bái zhì yǔ HIV jiē chù |
| [02:29.99] | jié guǒ zhè zhǒng dàn bái zhì hé bìng dú lián zài yì qǐ, ràng tā biàn de wú hài |
| [02:34.94] | kàng nì zhuǎn lù bìng dú yào wù zài |
| [02:39.04] | xiàn zhì HIV cóng mǔ qīn chuán rǎn gěi ér tóng fāng miàn réng rán yǒu xiào |
| [02:44.25] | dàn pà mǎ jiào shòu hé tā de tuán duì rèn wéi |
| [02:49.15] | TNC kě yǐ yòng yú |
| [02:52.65] | wú fǎ jìn xíng áng guì yào wù zhì liáo de dì qū |
| [02:57.66] | " xiàn zài de wèn tí bāo kuò néng fǒu huò dé yào wù hé hòu xù jiān cè, |
| [03:03.16] | hái yǒu dú xìng hé kàng nì zhuǎn lù bìng dú yào wù de nài yào xìng děng wèn tí |
| [03:07.73] | suǒ yǐ wǒ men rèn wéi qí tā de yǒu xiào fāng fǎ |
| [03:11.49] | kě yǐ yòng yú yǒng jiǔ xiāo chú yīng ér shí qī de chuán rǎn." |
| [03:14.44] | tā rèn wéi, TNC kě yǐ zài yīng ér jìn xíng mǔ rǔ wèi yǎng qián shǐ yòng |
| [03:20.35] | yǐ tí gōng é wài de dǐ kàng HIV gǎn rǎn de bǎo hù |
| [03:27.15] | tā hái shuō gāi dàn bái zhì shì ān quán de |
| [03:30.59] | yīn wèi tā yǐ jīng shì rén lèi mǔ rǔ de zì rán chéng fèn |
| [03:35.10] | zhè kě yǐ bì miǎn HIV duì kàng nì zhuǎn lù bìng dú yào wù |
| [03:38.69] | xíng chéng nài yào xìng de wèn tí |
| [03:42.89] | pà mǎ de tuán duì bǎ tā men de fā xiàn fā biǎo zài |
| [03:46.65] | měi guó guó jiā kē xué yuàn yuàn kān shàng |
| [03:50.61] | měi guó zhī shēng yīng yǔ xué xí zhī jiàn kāng bào dào |
| [03:55.90] | wǒ shì jùn xī mǔ sī |