Showing posts with label egg. Show all posts
Showing posts with label egg. Show all posts

23 September 2009

Eggless Swine Flu Vaccines coming to Europe

This is an update on a story being followed here. I was perusing the Baxter website for news, and found this out-of-date update. Deciding to do some minor journalism, I emailed them, and just got a reply from Karoline Traschler, Project Marketing Manager for Global Marketing Vaccines:

We thank you for your interest in our H1N1 vaccine. We expect European licensure by end of September. We have to inform you that it will not be available on the US market.


The last sentence is of concern, being stateside and all. I replied asking for clarification, but I'd imagine it'd have to do with the stricter drug safety regulations here (thanks a lot, thalidamide!). I'll keep you posted.

28 April 2009

Vaccines without Chickens

You may not know that 'vaccine' originally meant something like 'bovine.' They don't involve cows anymore, but they do usually use chickens. Or atleast eggs in development with a nascent and pliable immune system that can be manipulated to make antibodies. Like many crude methods, this takes time, is imprecise, and causes problems for people with allergies and ethical concerns.

So to work in another animal into this post, I heard a report this morning regarding swine flu. It mentioned a company that has found a way to make vaccines faster, and more importantly, egg free. According to Baxter's site, they use Vero cell cultures instead of the eggs. While originally derived from the kidney of a grivet, I feel it is so far removed from that long-dead monkey to consider that aspect to be ethically OK. Sure, people with monkey allergies and concern over hereto unknown prion diseases can object, but atleast it's not aborting factory-farmed chickens. One step at a time folks!

One concern with this methodology (and also with in vitro meat) is that Vero cells are typically grown with the use of fetal bovine serum (FBS). Thus exchanging chicken fetuses for cattle fetuses. Net gain of zero, unless you think the unhatched chicken eggs are vegetarian, but that's a slippery slope. I looked into it a little more, and according to a document on the Baxter site:

"Also, Baxter’s Vero cell system is capable of producing very high yields of influenza virus without the addition of any animal-derived serum."
That's possibly great news. I sent them an email to confirm. I'll post if there is a reply.

Swine Flu May Test Baxter
Baxter Vaccines
Vero Cell Backgrounder