View full-text article in PMC Eur Phys J Plus. 2022 Jan 27;137(2):174. doi: 10.1140/epjp/s13360-022-02387-2 Search in PMC Search in PubMed View in NLM Catalog Add to search Copyright and License information © The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022 This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic. PMC Copyright notice Fig. 6. The effect of increasing the death rates during the latency periods on SARS-CoV-2 and HIV particles. The parameters considered are η=2.9, μ=0.02, and θ=0.0016 with initial conditions (X(0),N(0),Y(0),V(0),S(0),T(0),W(0),H(0))=5,0.0001,0.0002,0.0003,100,5,10,15