Showing posts with label potency. Show all posts
Showing posts with label potency. Show all posts

Saturday, January 23, 2021

Keeping It Cool


Almost daily, we're informed about  new age groups that are to be vaccinated next. We're assured there's plenty of vaccine for the whole population. including children. Just make the appointment, and come .

I feel some urgency in the air about it, and that makes me think of the existence of possible vaccine storage/handling issues. I suspect the bottles have to be used quickly to avoid decreased potency and loss of patient's confidence.

                                                              bottles of vaccine (web picture)

After all, it's a tremendous logistical challenge. The vaccine units make a long journey from the centers of distribution -  to clinics - to patients. The journey involves planes, trains, trucks and special delivery containers adequately refrigerated (by dry ice). 

Pfizer's vaccine has to be kept at -70 degree Celsius. Moderna's vaccine is said to be stable at regular freezer temperatures. Both require two doses for full effect, which might complicate things.

Pfizer's 'freezing farm' in Kalamazoo, Mich  (web picture)

Hopefully, a significant drop in the bad numbers of covid-19 victims is to be expected by the end of the month, due to the vaccines and the lockdown. In the meantime, people are strongly advised by the medical experts to keep to masks and distancing, as the british mutation is hitting hard; it especially likes the young ones, and pregnant women in their advanced stage of pregnancy.

Here's a 'talk back' seen online: ' Of course, the british version of the virus is more efficient than the chinese one; wait till  the german or swiss version comes along - what precision, what perfection'...