There is no vaccine against HIV infection.

现在还没有防艾滋病病毒传染的疫苗。

《牛津词典》

Infection with head lice is no reflection on personal hygiene.

染上头虱并不会给个人卫生带来不好的影响。

《柯林斯英汉双解大词典》

Assuming no infection or surgical error, damage to the brain would be minimal.

如果没有感染或手术错误，脑部几乎不会受到损害。

youdao

And it says there is no risk of infection from eating well-cooked meat from pigs.

VOA: special.2009.05.06

Based on initial reports from such events, there has been no higher rate of infection after such drive-through vaccinations.

FORBES: Drive-through Flu Shots Gaining Popularity in U.S.

The New York hospital tested the donor 79 days before transplant, when he showed no evidence of infection, but did not re-test him closer to the surgery that removed the organ.

WSJ: CDC Urges More HIV Tests Before Transplants

So if you wake up on Election Day and you're sick, the car broke down, there's no babysitter, somebody is throwing up, wake up with an ear infection -- this is that time of year.

WHITEHOUSE: The White House