Summary
The development of effective and safe COVID‐19 vaccines is a major move forward in our global effort to control the SARS‐CoV‐2 pandemic. The aims of this study were (1) to develop an inactivated whole‐virus SARS‐CoV‐2 candidate vaccine named BIV1‐CovIran and (2) to determine the safety and potency of BIV1‐CovIran inactivated vaccine candidate against SARS‐CoV‐2. Infectious virus was isolated from nasopharyngeal swab specimen and propagated in Vero cells with clear cytopathic effects in a biosafety level‐3 facility using the World Health Organization’s laboratory biosafety guidance related to COVID‐19. After characterisation of viral seed stocks, the virus working seed was scaled‐up in Vero cells. After chemical inactivation and purification, it was formulated with alum adjuvant. Finally, different animal species were used to determine the toxicity and immunogenicity of the vaccine candidate. The study showed the safety profile in studied animals including guinea pig, rabbit, mice and monkeys. Immunisation at two different doses (3 or 5 μg per dose) elicited a high level of SARS‐CoV‐2 specific and neutralising antibodies in mice, rabbits and nonhuman primates. Rhesus macaques were immunised with the two‐dose schedule of 5 or 3 μg of the BIV1‐CovIran vaccine and showed highly efficient protection against 10
4
TCID50 of SARS‐CoV‐2 intratracheal challenge compared with the control group. These results highlight the BIV1‐CovIran vaccine as a potential candidate to induce a strong and potent immune response that may be a promising and feasible vaccine to protect against SARS‐CoV‐2 infection.
Evaluation of market power is one of the important aspects of power market analysis. The market power problem in electricity market is more complicated than other commodity markets because of its special characteristics. In general, market power is the ability of one seller or a group of sellers in keeping the market price more than its contest, in a long time and in the direction of their benefit. Transmission network characteristics is one of the most important factors in creation of the market power. The transmission congestion increases the potential of market power occurrence. The main purpose of this paper is determination of optimal Demand Response Program for reducing the market power and electricity price from the Independent System Operator viewpoint. In this paper, the electricity price has been calculated according to the sum of the paid cost to the producers proportional to their locational marginal price, and the paid cost to the customer proportional to their participation in demand response program.
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