Therapeutic options for the highly pathogenic human severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing the current pandemic coronavirus disease (COVID-19) are urgently needed. COVID-19 is associated with viral pneumonia and acute respiratory distress syndrome causing significant morbidity and mortality. The proposed treatments for COVID-19 have shown little or no effect in the clinic so far. Additionally, bacterial and fungal pathogens contribute to the SARS-CoV-2-mediated pneumonia disease complex. The antibiotic resistance in pneumonia treatment is increasing at an alarming rate. Therefore, carbon-based nanomaterials (CBNs), such as fullerene, carbon dots, graphene, and their derivatives constitute a promising alternative due to their wide-spectrum antimicrobial activity, biocompatibility, biodegradability, and capacity to induce tissue regeneration. Furthermore, the antimicrobial mode of action is mainly physical ( e.g. , membrane distortion), characterized by a low risk of antimicrobial resistance. In this Review, we evaluated the literature on the antiviral activity and broad-spectrum antimicrobial properties of CBNs. CBNs had antiviral activity against 13 enveloped positive-sense single-stranded RNA viruses, including SARS-CoV-2. CBNs with low or no toxicity to humans are promising therapeutics against the COVID-19 pneumonia complex with other viruses, bacteria, and fungi, including those that are multidrug-resistant.

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With each passing day, more cases of Coronavirus disease (COVID-2019) are being detected and unfortunately the fear of novel corona virus 2019 (2019-nCoV) becoming a pandemic disease has come true. Constant efforts at individual, national, and international level are being made in order to understand the genomics, hosts, modes of transmission and epidemiological link of nCoV-2019. As of now, whole genome sequence of the newly discovered coronavirus has already been decoded. Genomic characterization nCoV-2019 have shown close homology with batderived severe acute respiratory syndrome (SARS)-like coronaviruses, bat-SL-CoVZC45 and bat-SL-CoVZXC21. Structural analysis of the receptor binding site has confirmed that 2019-nCoV binds with the same ACE 2 receptor protein as human SARS virus. Compared to the previous coronavirus outbreaks, the overall mortality rate is relatively low for COVID-2019 (2-3%). Suspected cases must be quarantined till their test comes positive or they clear infection. At present, treatment of COVID-2019 is mostly based on the knowledge gained from the SARS and MERS outbreaks. Remdesivir, originally develop as a treatment for Ebola virus disease and Marburg virus infections, is being studied for its effectiveness against 2019-nCoV infection. Many other antiviral agents and vaccines are being tested but most of them are in phase I or II and hence unlikely to be of any benefit immediately with regards to current outbreak. Hence, the standard infection control techniques and preventive steps for healthy individuals and supportive care for the confirmed cases is the best available strategy to deal with current viral outbreak.

Recently, a new coronavirus disease (COVID-19) has emerged as a respiratory infection with significant concern for global public health hazards. With an initial suspicion of the animal to the human transmission for earlier cases, now the paradigm has shifted towards human to human transmission via droplets, contacts and/or through fomites. with each passing day, more and more confirmed cases are being reported worldwide which has alarmed the global authorities including World Health Organization (WHO), Centers for Disease Control and Prevention (CDC) and the National Health Commission of the People's Republic of China to take immediate action in order to reduce the transmission and subsequent mortalities associated with COVID-19 to as minimum as possible. Unfortunately, like the previous Coronavirus outbreaks, there is no definite antiviral therapy for the treatment of confirmed cases and hence preventing ourselves from contracting 2019-nCoV is the best way to prevent it from becoming pandemic. Herein, we aim to discuss the latest updates on the origin, genomic characteristics, diagnosis, treatment options and current efforts being made by international health organizations with regards to the 2019-nCoV outbreak.

Background and Objective: Electronic cigarettes (e cigarettes) are battery operated devices that produce aerosol by heating a solution typically made up of nicotine, propylene glycol, glycerin and flavouring agents. The use of e cigarettes has risen dramatically in recent years especially among adolescents and young adults. These devices have been marketed as safer alternatives to tobacco smoking by their manufactures despite lack of adequate safety data.

Coronavirus disease (COVID-19) pandemic has so far involved 184 countries and more than 2.79 million patients worldwide. Over the past three months, it has attributed to more than 196,000 deaths, with more than 50,000 deaths in the United States alone. Pulmonary manifestations are predominant and have been well identified. Cardiac involvement is also common. Acute cardiac injury, the most common cardiac manifestation of this disease can be seen in patients even without prior cardiac comorbidities. Established cardiovascular risk factors such as diabetes mellitus, hypertension, and coronary artery disease predispose to cardiac injury, the severity of illness and mortality. Non-ischemic myocardial injury secondary to cytokine storm is thought to be the predominant mechanism of acute cardiac injury associated with COVID-19. Multiple mechanisms and processes contribute to cardiac injury resulting in a poor outcome. Some of these are not clearly understood. Clinical and diagnostic details of cardiovascular involvement in these patients are mostly limited to biochemical markers. Multiple therapeutic agents have been tried with questionable efficacy and without clinical evidence. Interactions of comorbidities, cardiovascular drugs, the cardiac effect of therapeutic agents on the illness continue to be under investigation. With an increasing number of patients, newer promising therapies, and ongoing clinical trials, the exact mechanisms and extent to which these risk factors contribute to outcomes will be clearer in the future.

tropism/adaptation, resistance to neutralizing antibodies, or immune evasion. 2 Interestingly, clinical SARS-CoV-2 isolates to date have only a single high-frequency nonsynonymous mutation, D614G, in their S protein. 9 Based on currently known mutation rates and patterns in clinical isolates of SARS-CoV-2, the S protein does not appear to be a mutational "hot spot" for SARS-CoV-2, unlike other human CoVs. SARS-CoV-2 is the seventh HCoV, but the first HCoV with pandemic potential. SARS-CoV disappeared without a pandemic, and MERS-CoV is mostly endemic to the Arabian Peninsula with some additional limited traveler infections resulting in outbreaks in South Korea. 3,4 These unique features of SARS-CoV-2 raise several questions concerning the proximal origin of the virus that require further discussion.

Although vaccination represents the most promising way to stop or contain the coronavirus disease 2019 (COVID-19) pandemic and safety and effectiveness of available vaccines were proven, a small number of individuals who received anti-SARS-CoV-2 vaccines developed a prothrombotic syndrome. Vaccine-induced immune thrombotic thrombocytopenia (VITT) can be triggered by the adenoviral vector-based vaccine, whereas lipid nanoparticle-mRNA-based vaccines can induce rare cases of deep vein thrombosis (DVT). Although the main pathogenic mechanisms behind this rare phenomenon have not yet been identified, both host and vaccine factors might be involved, with pathology at least in part being related to the vaccine-triggered autoimmune reaction. In this review, we are considering some aspects related to pathogenesis, major risk factors, as well as peculiarities of diagnosis and treatment of this rare condition.