VIP and infection: As a consequence, ATP generation was also hampered at day 10 and 14 post-infection (p<0.01, Fig 5F), and VIP treatment for day 5–10 alleviated the reduction at both time points (-46% to -8%, p<0.05, and -48% to -25%, p<0.05), whereas treatment for day 10–14 or 5–14 was less effective (Fig 5F).